#1B2189

#1B2189

Color Values

HEX

#1B2189

RGB

27, 33, 137

HSL

236.7, 67.1%, 32.2%

HSV

236.7, 80.3%, 53.7%

CMYK

80.3%, 75.9%, 0.0%, 46.3%

OKLCH

0.3301 0.1673 270.4

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#1B2189

#89831B

Analogous

#1B5889

#4C1B89

#1B2189

Triadic

#1B2189

#891B21

#21891B

Split Complementary

#1B2189

#894C1B

#58891B

Tetradic

#1B2189

#891B58

#89831B

#1B894C

Color Blindness Simulation

Original

#1B2189

Protanopia

#1E1E70

Deuteranopia

#1D1D6A

Tritanopia

#1B5C58

Achromatopsia

#272727

CSS Usage

background-color: #1B2189;
color: #1B2189;
border-color: #1B2189;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F3F3FC
100
#E3E4F7
200
#C3C6F3
300
#999DEB
400
#6168E0
500
#2A33D5
600
#2229AA
700
#1B2188
800
#151A6B
900
#13164E
950
#0C0E31

Contrast Checker

Text on white

12.92:1

AA Pass AAA Pass

Text on black

1.63:1

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