#155D90

#155D90

Color Values

HEX

#155D90

RGB

21, 93, 144

HSL

204.9, 74.5%, 32.4%

HSV

204.9, 85.4%, 56.5%

CMYK

85.4%, 35.4%, 0.0%, 43.5%

OKLCH

0.4624 0.1068 245.3

Properties

Cool Dark Nearest: RAL 5019 Capri Blue

Color Harmonies

Complementary

#155D90

#904815

Analogous

#159086

#152090

#155D90

Triadic

#155D90

#90155D

#5D9015

Split Complementary

#155D90

#901520

#908615

Tetradic

#155D90

#861590

#904815

#209015

Color Blindness Simulation

Original

#155D90

Protanopia

#343584

Deuteranopia

#302B81

Tritanopia

#197A78

Achromatopsia

#515151

CSS Usage

background-color: #155D90;
color: #155D90;
border-color: #155D90;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F3F8FC
100
#E2EFF8
200
#C1E0F6
300
#94CAEF
400
#5AADE7
500
#2190DE
600
#1A73B2
700
#155C8E
800
#10486F
900
#103651
950
#0A2233

Contrast Checker

Text on white

7.0:1

AA Pass AAA Fail

Text on black

3.0:1

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