#21425C

#21425C

Color Values

HEX

#21425C

RGB

33, 66, 92

HSL

206.4, 47.2%, 24.5%

HSV

206.4, 64.1%, 36.1%

CMYK

64.1%, 28.3%, 0.0%, 63.9%

OKLCH

0.3666 0.0595 244.2

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#21425C

#5C3B21

Analogous

#215C58

#21255C

#21425C

Triadic

#21425C

#5C2142

#425C21

Split Complementary

#21425C

#5C2125

#5C5821

Tetradic

#21425C

#58215C

#5C3B21

#255C21

Color Blindness Simulation

Original

#21425C

Protanopia

#2F3056

Deuteranopia

#2D2B54

Tritanopia

#235150

Achromatopsia

#3D3D3D

CSS Usage

background-color: #21425C;
color: #21425C;
border-color: #21425C;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F4F8FA
100
#E6EEF4
200
#CADDEC
300
#A5C5DF
400
#74A6CD
500
#4387BC
600
#366C96
700
#2B5678
800
#22435E
900
#1C3345
950
#12202C

Contrast Checker

Text on white

10.51:1

AA Pass AAA Pass

Text on black

2.0:1

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