#042D51

#042D51

Color Values

HEX

#042D51

RGB

4, 45, 81

HSL

208.1, 90.6%, 16.7%

HSV

208.1, 95.1%, 31.8%

CMYK

95.1%, 44.4%, 0.0%, 68.2%

OKLCH

0.2923 0.0784 250.3

Properties

Cool Dark Nearest: RAL 5010 Gentian Blue

Color Harmonies

Complementary

#042D51

#512804

Analogous

#04514F

#040651

#042D51

Triadic

#042D51

#51042D

#2D5104

Split Complementary

#042D51

#510406

#514F04

Tetradic

#042D51

#4F0451

#512804

#065104

Color Blindness Simulation

Original

#042D51

Protanopia

#161648

Deuteranopia

#131046

Tritanopia

#064140

Achromatopsia

#272727

CSS Usage

background-color: #042D51;
color: #042D51;
border-color: #042D51;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F1F8FD
100
#DFEEFB
200
#BBDDFC
300
#8AC5F9
400
#4BA6F6
500
#0C87F3
600
#0A6CC2
700
#08569C
800
#06437A
900
#093358
950
#062038

Contrast Checker

Text on white

14.01:1

AA Pass AAA Pass

Text on black

1.5:1

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