#1B1CB6

#1B1CB6

Color Values

HEX

#1B1CB6

RGB

27, 28, 182

HSL

239.6, 74.2%, 41.0%

HSV

239.6, 85.2%, 71.4%

CMYK

85.2%, 84.6%, 0.0%, 28.6%

OKLCH

0.3775 0.2251 268.5

Properties

Cool Dark Nearest: darkblue

Color Harmonies

Complementary

#1B1CB6

#B6B51B

Analogous

#1B6AB6

#681BB6

#1B1CB6

Triadic

#1B1CB6

#B61B1C

#1CB61B

Split Complementary

#1B1CB6

#B6681B

#6AB61B

Tetradic

#1B1CB6

#B61B6A

#B6B51B

#1BB668

Color Blindness Simulation

Original

#1B1CB6

Protanopia

#1B1B91

Deuteranopia

#1B1B88

Tritanopia

#1B736D

Achromatopsia

#272727

CSS Usage

background-color: #1B1CB6;
color: #1B1CB6;
border-color: #1B1CB6;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F3F3FC
100
#E2E2F8
200
#C1C1F6
300
#9495EF
400
#5B5CE7
500
#2122DE
600
#1A1BB2
700
#15168E
800
#10116F
900
#101151
950
#0A0A33

Contrast Checker

Text on white

11.12:1

AA Pass AAA Pass

Text on black

1.89:1

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