#37287F

#37287F

Color Values

HEX

#37287F

RGB

55, 40, 127

HSL

250.3, 52.1%, 32.7%

HSV

250.3, 68.5%, 49.8%

CMYK

56.7%, 68.5%, 0.0%, 50.2%

OKLCH

0.3516 0.1396 284.5

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#37287F

#707F28

Analogous

#28447F

#62287F

#37287F

Triadic

#37287F

#7F3728

#287F37

Split Complementary

#37287F

#7F6228

#447F28

Tetradic

#37287F

#7F2844

#707F28

#287F62

Color Blindness Simulation

Original

#37287F

Protanopia

#31306A

Deuteranopia

#313265

Tritanopia

#365956

Achromatopsia

#313131

CSS Usage

background-color: #37287F;
color: #37287F;
border-color: #37287F;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F4FB
100
#E8E5F5
200
#CFC9EE
300
#ADA2E2
400
#806FD2
500
#543DC2
600
#43319B
700
#36277C
800
#2A1F61
900
#221A47
950
#15102D

Contrast Checker

Text on white

11.85:1

AA Pass AAA Pass

Text on black

1.77:1

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