#1B124B

#1B124B

Color Values

HEX

#1B124B

RGB

27, 18, 75

HSL

249.5, 61.3%, 18.2%

HSV

249.5, 76.0%, 29.4%

CMYK

64.0%, 76.0%, 0.0%, 70.6%

OKLCH

0.2371 0.0999 282.9

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#1B124B

#424B12

Analogous

#12254B

#37124B

#1B124B

Triadic

#1B124B

#4B1B12

#124B1B

Split Complementary

#1B124B

#4B3712

#254B12

Tetradic

#1B124B

#4B1225

#424B12

#124B37

Color Blindness Simulation

Original

#1B124B

Protanopia

#17173D

Deuteranopia

#18183A

Tritanopia

#1B3230

Achromatopsia

#181818

CSS Usage

background-color: #1B124B;
color: #1B124B;
border-color: #1B124B;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F5F3FB
100
#E7E4F6
200
#CCC5F1
300
#A89CE7
400
#7967DA
500
#4A31CE
600
#3B27A5
700
#2F2084
800
#251967
900
#1E164B
950
#130E2F

Contrast Checker

Text on white

17.01:1

AA Pass AAA Pass

Text on black

1.23:1

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