#231FB8

#231FB8

Color Values

HEX

#231FB8

RGB

35, 31, 184

HSL

241.6, 71.2%, 42.2%

HSV

241.6, 83.2%, 72.2%

CMYK

81.0%, 83.2%, 0.0%, 27.8%

OKLCH

0.3866 0.2232 270.3

Properties

Cool Dark Nearest: darkblue

Color Harmonies

Complementary

#231FB8

#B4B81F

Analogous

#1F68B8

#701FB8

#231FB8

Triadic

#231FB8

#B8231F

#1FB823

Split Complementary

#231FB8

#B8701F

#68B81F

Tetradic

#231FB8

#B81F68

#B4B81F

#1FB870

Color Blindness Simulation

Original

#231FB8

Protanopia

#212193

Deuteranopia

#22228A

Tritanopia

#23766F

Achromatopsia

#2B2B2B

CSS Usage

background-color: #231FB8;
color: #231FB8;
border-color: #231FB8;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F3F3FC
100
#E3E2F8
200
#C3C2F5
300
#9996ED
400
#615DE4
500
#2A25DA
600
#211DAF
700
#1B188C
800
#15126D
900
#13114F
950
#0C0B32

Contrast Checker

Text on white

10.72:1

AA Pass AAA Pass

Text on black

1.96:1

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