#1F0231

#1F0231

Color Values

HEX

#1F0231

RGB

31, 2, 49

HSL

277.0, 92.2%, 10.0%

HSV

277.0, 95.9%, 19.2%

CMYK

36.7%, 95.9%, 0.0%, 80.8%

OKLCH

0.1892 0.0897 308.6

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#1F0231

#143102

Analogous

#070231

#31022C

#1F0231

Triadic

#1F0231

#311F02

#02311F

Split Complementary

#1F0231

#2C3102

#023107

Tetradic

#1F0231

#310702

#143102

#022C31

Color Blindness Simulation

Original

#1F0231

Protanopia

#121226

Deuteranopia

#141623

Tritanopia

#1E1D1B

Achromatopsia

#0C0C0C

CSS Usage

background-color: #1F0231;
color: #1F0231;
border-color: #1F0231;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F9F1FD
100
#F0DFFB
200
#E3BAFC
300
#CF89FA
400
#B54AF8
500
#9B0AF5
600
#7C08C4
700
#63069D
800
#4D057B
900
#3A0859
950
#250538

Contrast Checker

Text on white

18.9:1

AA Pass AAA Pass

Text on black

1.11:1

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