#263371

#263371

Color Values

HEX

#263371

RGB

38, 51, 113

HSL

229.6, 49.7%, 29.6%

HSV

229.6, 66.4%, 44.3%

CMYK

66.4%, 54.9%, 0.0%, 55.7%

OKLCH

0.3473 0.1078 270.9

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#263371

#716426

Analogous

#265871

#3E2671

#263371

Triadic

#263371

#712633

#337126

Split Complementary

#263371

#713E26

#587126

Tetradic

#263371

#712658

#716426

#26713E

Color Blindness Simulation

Original

#263371

Protanopia

#2C2C62

Deuteranopia

#2B2A5E

Tritanopia

#275654

Achromatopsia

#353535

CSS Usage

background-color: #263371;
color: #263371;
border-color: #263371;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F4F5FB
100
#E6E8F5
200
#CAD0ED
300
#A3AEE0
400
#7282D0
500
#4056BF
600
#334599
700
#29377A
800
#202B5F
900
#1B2246
950
#11162C

Contrast Checker

Text on white

11.7:1

AA Pass AAA Pass

Text on black

1.79:1

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