#1F023D

#1F023D

Color Values

HEX

#1F023D

RGB

31, 2, 61

HSL

269.5, 93.7%, 12.4%

HSV

269.5, 96.7%, 23.9%

CMYK

49.2%, 96.7%, 0.0%, 76.1%

OKLCH

0.2023 0.1028 299.5

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#1F023D

#203D02

Analogous

#02023D

#3D023D

#1F023D

Triadic

#1F023D

#3D1F02

#023D1F

Split Complementary

#1F023D

#3D3D02

#023D02

Tetradic

#1F023D

#3D0202

#203D02

#023D3D

Color Blindness Simulation

Original

#1F023D

Protanopia

#12122F

Deuteranopia

#14162B

Tritanopia

#1E2321

Achromatopsia

#0C0C0C

CSS Usage

background-color: #1F023D;
color: #1F023D;
border-color: #1F023D;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F1FD
100
#EDDFFB
200
#DBBAFD
300
#C188FB
400
#9F48F9
500
#7E08F7
600
#6406C6
700
#50059E
800
#3F047B
900
#300859
950
#1E0538

Contrast Checker

Text on white

18.51:1

AA Pass AAA Pass

Text on black

1.13:1

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