#04257C

#04257C

Color Values

HEX

#04257C

RGB

4, 37, 124

HSL

223.5, 93.8%, 25.1%

HSV

223.5, 96.8%, 48.6%

CMYK

96.8%, 70.2%, 0.0%, 51.4%

OKLCH

0.3141 0.1511 263.5

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#04257C

#7C5B04

Analogous

#04617C

#1F047C

#04257C

Triadic

#04257C

#7C0425

#257C04

Split Complementary

#04257C

#7C1F04

#617C04

Tetradic

#04257C

#7C0461

#7C5B04

#047C1F

Color Blindness Simulation

Original

#04257C

Protanopia

#121367

Deuteranopia

#100E62

Tritanopia

#065653

Achromatopsia

#242424

CSS Usage

background-color: #04257C;
color: #04257C;
border-color: #04257C;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F1F5FD
100
#DFE7FB
200
#BACCFD
300
#88A8FB
400
#4879F9
500
#084AF7
600
#063BC6
700
#052F9E
800
#04257C
900
#081E59
950
#051338

Contrast Checker

Text on white

13.45:1

AA Pass AAA Pass

Text on black

1.56:1

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