#21825B

#21825B

Color Values

HEX

#21825B

RGB

33, 130, 91

HSL

155.9, 59.5%, 32.0%

HSV

155.9, 74.6%, 51.0%

CMYK

74.6%, 0.0%, 30.0%, 49.0%

OKLCH

0.5414 0.1074 161.6

Properties

Cool Dark Nearest: seagreen

Color Harmonies

Complementary

#21825B

#822148

Analogous

#21822B

#217982

#21825B

Triadic

#21825B

#5B2182

#825B21

Split Complementary

#21825B

#822179

#822B21

Tetradic

#21825B

#2B2182

#822148

#798221

Color Blindness Simulation

Original

#21825B

Protanopia

#4B4C64

Deuteranopia

#453E67

Tritanopia

#266C6E

Achromatopsia

#6B6B6B

CSS Usage

background-color: #21825B;
color: #21825B;
border-color: #21825B;
Nearest Tailwind: Emerald 700 #047857

Tailwind Shades

50
#F3FBF8
100
#E4F6EF
200
#C6F1DF
300
#9DE6C9
400
#69D9AC
500
#34CB8E
600
#29A372
700
#21825B
800
#1A6647
900
#174A36
950
#0E2F22

Contrast Checker

Text on white

4.76:1

AA Pass AAA Fail

Text on black

4.41:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026