#040A51

#040A51

Color Values

HEX

#040A51

RGB

4, 10, 81

HSL

235.3, 90.6%, 16.7%

HSV

235.3, 95.1%, 31.8%

CMYK

95.1%, 87.7%, 0.0%, 68.2%

OKLCH

0.2148 0.1239 266.7

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#040A51

#514B04

Analogous

#043151

#250451

#040A51

Triadic

#040A51

#51040A

#0A5104

Split Complementary

#040A51

#512504

#315104

Tetradic

#040A51

#510431

#514B04

#045125

Color Blindness Simulation

Original

#040A51

Protanopia

#070740

Deuteranopia

#06063C

Tritanopia

#04322F

Achromatopsia

#0E0E0E

CSS Usage

background-color: #040A51;
color: #040A51;
border-color: #040A51;
Nearest Tailwind: Violet 950 #2E1065

Tailwind Shades

50
#F1F2FD
100
#DFE2FB
200
#BBC0FC
300
#8A93F9
400
#4B59F6
500
#0C1EF3
600
#0A18C2
700
#08139C
800
#060F7A
900
#090F58
950
#060A38

Contrast Checker

Text on white

17.99:1

AA Pass AAA Pass

Text on black

1.17:1

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