#1B1245

#1B1245

Color Values

HEX

#1B1245

RGB

27, 18, 69

HSL

250.6, 58.6%, 17.1%

HSV

250.6, 73.9%, 27.1%

CMYK

60.9%, 73.9%, 0.0%, 72.9%

OKLCH

0.231 0.091 284.8

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#1B1245

#3C4512

Analogous

#122345

#351245

#1B1245

Triadic

#1B1245

#451B12

#12451B

Split Complementary

#1B1245

#453512

#234512

Tetradic

#1B1245

#451223

#3C4512

#124535

Color Blindness Simulation

Original

#1B1245

Protanopia

#171739

Deuteranopia

#181836

Tritanopia

#1B2F2D

Achromatopsia

#181818

CSS Usage

background-color: #1B1245;
color: #1B1245;
border-color: #1B1245;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F5F4FB
100
#E7E4F6
200
#CEC6F0
300
#AB9EE6
400
#7D69D8
500
#4F35CA
600
#3F2AA2
700
#332281
800
#281A65
900
#20174A
950
#140E2F

Contrast Checker

Text on white

17.23:1

AA Pass AAA Pass

Text on black

1.22:1

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