#1B0B2F

#1B0B2F

Color Values

HEX

#1B0B2F

RGB

27, 11, 47

HSL

266.7, 62.1%, 11.4%

HSV

266.7, 76.6%, 18.4%

CMYK

42.6%, 76.6%, 0.0%, 81.6%

OKLCH

0.197 0.0691 300.6

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#1B0B2F

#1F2F0B

Analogous

#0B0D2F

#2D0B2F

#1B0B2F

Triadic

#1B0B2F

#2F1B0B

#0B2F1B

Split Complementary

#1B0B2F

#2F2D0B

#0D2F0B

Tetradic

#1B0B2F

#2F0B0D

#1F2F0B

#0B2F2D

Color Blindness Simulation

Original

#1B0B2F

Protanopia

#141426

Deuteranopia

#151624

Tritanopia

#1A1F1E

Achromatopsia

#111111

CSS Usage

background-color: #1B0B2F;
color: #1B0B2F;
border-color: #1B0B2F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F3FB
100
#ECE4F7
200
#D9C5F1
300
#BE9CE8
400
#9A66DB
500
#7730CF
600
#5F27A5
700
#4C1F84
800
#3B1867
900
#2D154C
950
#1D0D30

Contrast Checker

Text on white

18.49:1

AA Pass AAA Pass

Text on black

1.14:1

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