#040618

#040618

Color Values

HEX

#040618

RGB

4, 6, 24

HSL

234.0, 71.4%, 5.5%

HSV

234.0, 83.3%, 9.4%

CMYK

83.3%, 75.0%, 0.0%, 90.6%

OKLCH

0.1329 0.0408 272.7

Properties

Cool Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#040618

#181604

Analogous

#041018

#0C0418

#040618

Triadic

#040618

#180406

#061804

Split Complementary

#040618

#180C04

#101804

Tetradic

#040618

#180410

#181604

#04180C

Color Blindness Simulation

Original

#040618

Protanopia

#050514

Deuteranopia

#050513

Tritanopia

#04100F

Achromatopsia

#070707

CSS Usage

background-color: #040618;
color: #040618;
border-color: #040618;
Nearest Tailwind: Slate 950 #020617

Tailwind Shades

50
#F3F4FC
100
#E2E4F8
200
#C2C7F5
300
#969FED
400
#5D6BE4
500
#2437DB
600
#1D2CAF
700
#17238C
800
#121B6D
900
#111850
950
#0B0F32

Contrast Checker

Text on white

20.11:1

AA Pass AAA Pass

Text on black

1.04:1

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