#155BAD

#155BAD

Color Values

HEX

#155BAD

RGB

21, 91, 173

HSL

212.4, 78.4%, 38.0%

HSV

212.4, 87.9%, 67.8%

CMYK

87.9%, 47.4%, 0.0%, 32.2%

OKLCH

0.4771 0.147 255.9

Properties

Cool Dark Nearest: NCS S 2065-B Pure Blue

Color Harmonies

Complementary

#155BAD

#AD6715

Analogous

#15A7AD

#1B15AD

#155BAD

Triadic

#155BAD

#AD155B

#5BAD15

Split Complementary

#155BAD

#AD1B15

#A7AD15

Tetradic

#155BAD

#AD15A7

#AD6715

#15AD1B

Color Blindness Simulation

Original

#155BAD

Protanopia

#333499

Deuteranopia

#2F2A94

Tritanopia

#188986

Achromatopsia

#525252

CSS Usage

background-color: #155BAD;
color: #155BAD;
border-color: #155BAD;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F2F7FC
100
#E1ECF9
200
#BFD9F7
300
#92BEF2
400
#579BEB
500
#1C78E3
600
#1660B6
700
#124C92
800
#0E3C72
900
#0E2E53
950
#091D34

Contrast Checker

Text on white

6.71:1

AA Pass AAA Fail

Text on black

3.13:1

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