#153751

#153751

Color Values

HEX

#153751

RGB

21, 55, 81

HSL

206,0, 58,8%, 20,0%

HSV

206,0, 74,1%, 31,8%

CMYK

74,1%, 32,1%, 0,0%, 68,2%

OKLCH

0,3252 0,0608 244,4

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#153751

#512F15

Analogous

#15514D

#151951

#153751

Triadic

#153751

#511537

#375115

Split Complementary

#153751

#511519

#514D15

Tetradic

#153751

#4D1551

#512F15

#195115

Color Blindness Simulation

Original

#153751

Protanopia

#24244B

Deuteranopia

#221F49

Tritanopia

#174645

Achromatopsia

#323232

CSS Usage

background-color: #153751;
color: #153751;
border-color: #153751;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F4F8FB
100
#E4EEF6
200
#C6DEF0
300
#9EC7E6
400
#69A8D8
500
#3589CA
600
#2A6EA2
700
#225882
800
#1A4565
900
#17344A
950
#0E212F

Contrast Checker

Text on white

12,37:1

AA Pass AAA Pass

Text on black

1,7:1

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