#1D2157

#1D2157

Color Values

HEX

#1D2157

RGB

29, 33, 87

HSL

235.9, 50.0%, 22.7%

HSV

235.9, 66.7%, 34.1%

CMYK

66.7%, 62.1%, 0.0%, 65.9%

OKLCH

0.28 0.0962 275.1

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#1D2157

#57531D

Analogous

#1D3E57

#361D57

#1D2157

Triadic

#1D2157

#571D21

#21571D

Split Complementary

#1D2157

#57361D

#3E571D

Tetradic

#1D2157

#571D3E

#57531D

#1D5736

Color Blindness Simulation

Original

#1D2157

Protanopia

#1F1F4A

Deuteranopia

#1E1E47

Tritanopia

#1D403D

Achromatopsia

#242424

CSS Usage

background-color: #1D2157;
color: #1D2157;
border-color: #1D2157;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F5FB
100
#E6E7F5
200
#C9CCED
300
#A3A7E0
400
#7178D0
500
#4048BF
600
#333A99
700
#292E7A
800
#202460
900
#1B1E46
950
#11132C

Contrast Checker

Text on white

14.92:1

AA Pass AAA Pass

Text on black

1.41:1

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