Color swatch image showing #21422B with RGB(33,66,43) values
Color swatch image showing #21422B with RGB(33,66,43) values

#21422B Color Meaning and Information

Everything you need to know about #21422B including values, color harmonies, shades, meanings, and applications in design, branding, and everyday visuals.

#21422B Color Information

#21422B RGB value is (33, 66, 43). The hex color red value is 33, green is 66, and blue is 43. Its HSL format shows a hue of 138°, saturation of 33 percent, and lightness of 19 percent. The CMYK process values are 50 percent, 0 percent, 35 percent, 74 percent.

#21422B color swatch
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#21422B Color Meaning

Color #21422B embodies academic rigor, ecological stewardship, and grounded innovation. Color #21422B is a deep forest tone rooted in institutional identity—specifically California Polytechnic State University—but its psychological resonance extends far beyond campus. #21422B shade merges the stability of dark green with the vitality of chlorophyll, creating a hue that feels both scholarly and alive. In color psychology, greens in #21422B value range signal trust, growth, and long-term thinking, which explains their use in sustainability branding and educational platforms. Color #21422B avoids the clinical edge of teal and the juvenility of lime, offering instead a mature, purposeful green. Functionally, color #21422B works exceptionally well in print and digital contexts requiring authority without aggression. #21422B provides strong contrast against white or light cream while remaining easy on the eyes during prolonged reading—key for academic or technical documentation. Environmental design studies show that deep greens like color #21422B reduce stress responses more effectively than blues in indoor learning environments, likely due to their strong association with natural canopies. As a result, #21422B appears in libraries, research labs, and agricultural tech interfaces where focus and calm must coexist. Culturally, color #21422B reflects the “learn by doing” ethos—practical knowledge rooted in the earth. #21422B symbolizes resilience through seasons, not spectacle. In spiritual contexts, #21422B aligns with the heart chakra’s grounded expression: care that manifests through action, not just intention. Designers choose color #21422B when they want to signal competence with conscience. Unlike flashy greens that chase trends, color #21422B endures by connecting intellect to ecology.

Color Conversion

Convert #21422B across different color models and formats. These conversions help designers work seamlessly between digital and print media, ensuring this color maintains its intended appearance across RGB screens, CMYK printers, and HSL color manipulations.

HEX
#21422B
RGB
rgb(33, 66, 43)
HSL
hsl(138°, 33%, 19%)
CMYK
cmyk(50%, 0%, 35%, 74%)
HSV
hsv(138°, 50%, 26%)
XYZ
3.0115 4.3942 2.9749
Yxy
4.3942 0.2901 0.4233
Hunter Lab
20.9623 -0.2271 0.1118
CIE-Lab
24.9340 -18.2239 10.3380

RGB Values & CMYK Values

RGB Values

Red33 / 255 (13%)
13%
Green66 / 255 (26%)
26%
Blue43 / 255 (17%)
17%

CMYK Values

Cyan50 / 100 (50%)
50%
Magenta0 / 100 (0%)
Yellow35 / 100 (35%)
35%
Key (Black)74 / 100 (74%)
74%

Color Variations

#21422B harmonies come to life through carefully balanced shades, tints, and tones, giving this color depth and flexibility across light and dark variations. Shades add richness, tints bring an airy softness, and tones soften intensity, making it easy to pair in clean, modern palettes.

Color Harmonies

#21422B harmonies create beautiful relationships with other colors based on their position on the color wheel. Each harmony type offers unique design possibilities, enabling cohesive and visually appealing color schemes.

Analogous

Colors adjacent on the color wheel (30° apart)

Complementary

Colors opposite on the color wheel (180° apart)

Split Complementary

Three colors using one base hue and the two hues beside its opposite

Triadic

Three colors evenly spaced (120° apart)

Tetradic

Four colors forming a rectangle on the wheel

Square

Four colors evenly spaced (90° apart)

Double Split

Four colors formed from two base hues and the colors next to their opposites

Monochromatic

Variations of a single hue

Contrast Checker

(WCAG 2.1) Test #21422B for accessibility compliance against white and black backgrounds. Proper contrast ensures this color remains readable and usable for all audiences, meeting WCAG 2.1 standards for both normal and large text applications.

#FFFFFF
#21422B

Sample Text

This is how your text will look with these colors.

Large Text (18pt+)

11.18:1
WCAG AA
WCAG AAA

Normal Text

11.18:1
WCAG AA
WCAG AAA

UI Components

11.18:1
WCAG AA
WCAG AAA

Color Blindness Simulator

See how #21422B appears to people with different types of color vision deficiencies. These simulations help create more inclusive designs that consider how this color is perceived across various visual abilities.

Normal Vision

#21422B

protanopia

#2f3031

Note: These simulations are approximations. Actual color vision deficiency varies by individual.

CSS Examples

Background Color

background-color: #21422B;

Text Color

color: #21422B;

Sample Text

Border Color

border: 2px solid #21422B;

Box Shadow

box-shadow: 0 4px 6px #21422B40;

Text Shadow

text-shadow: 2px 2px 4px #21422B;

Sample Text

Gradient

background: linear-gradient(135deg, #21422B 0%, #162b1c 100%);

#21422B Color FAQs

Frequently asked questions about #21422B color meaning, symbolism, and applications. Click on any question to expand detailed answers.