#37377B

#37377B

Color Values

HEX

#37377B

RGB

55, 55, 123

HSL

240.0, 38.2%, 34.9%

HSV

240.0, 55.3%, 48.2%

CMYK

55.3%, 55.3%, 0.0%, 51.8%

OKLCH

0.376 0.1127 279.5

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#37377B

#7B7B37

Analogous

#37597B

#59377B

#37377B

Triadic

#37377B

#7B3737

#377B37

Split Complementary

#37377B

#7B5937

#597B37

Tetradic

#37377B

#7B3759

#7B7B37

#377B59

Color Blindness Simulation

Original

#37377B

Protanopia

#37376B

Deuteranopia

#373767

Tritanopia

#375E5B

Achromatopsia

#3C3C3C

CSS Usage

background-color: #37377B;
color: #37377B;
border-color: #37377B;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E7E7F3
200
#CECEE9
300
#AAAAD9
400
#7D7DC5
500
#4F4FB0
600
#3F3F8D
700
#323271
800
#272758
900
#202041
950
#141429

Contrast Checker

Text on white

10.53:1

AA Pass AAA Pass

Text on black

1.99:1

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