#231C4D

#231C4D

Color Values

HEX

#231C4D

RGB

35, 28, 77

HSL

248.6, 46.7%, 20.6%

HSV

248.6, 63.6%, 30.2%

CMYK

54.5%, 63.6%, 0.0%, 69.8%

OKLCH

0.2659 0.0869 285.4

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#231C4D

#464D1C

Analogous

#1C2D4D

#3C1C4D

#231C4D

Triadic

#231C4D

#4D231C

#1C4D23

Split Complementary

#231C4D

#4D3C1C

#2D4D1C

Tetradic

#231C4D

#4D1C2D

#464D1C

#1C4D3C

Color Blindness Simulation

Original

#231C4D

Protanopia

#202041

Deuteranopia

#20213E

Tritanopia

#233836

Achromatopsia

#212121

CSS Usage

background-color: #231C4D;
color: #231C4D;
border-color: #231C4D;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F5F4FA
100
#E8E6F4
200
#CFCBEC
300
#ADA5DE
400
#8175CD
500
#5544BB
600
#443696
700
#362B78
800
#2B225E
900
#221C45
950
#15122B

Contrast Checker

Text on white

15.62:1

AA Pass AAA Pass

Text on black

1.34:1

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