#043940

#043940

Color Values

HEX

#043940

RGB

4, 57, 64

HSL

187.0, 88.2%, 13.3%

HSV

187.0, 93.8%, 25.1%

CMYK

93.8%, 10.9%, 0.0%, 74.9%

OKLCH

0.3163 0.0522 208.8

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#043940

#400B04

Analogous

#044029

#041B40

#043940

Triadic

#043940

#400439

#394004

Split Complementary

#043940

#40041B

#402904

Tetradic

#043940

#290440

#400B04

#1B4004

Color Blindness Simulation

Original

#043940

Protanopia

#1B1B3E

Deuteranopia

#18143E

Tritanopia

#073D3D

Achromatopsia

#2E2E2E

CSS Usage

background-color: #043940;
color: #043940;
border-color: #043940;
Nearest Tailwind: Teal 950 #042F2E

Tailwind Shades

50
#F2FCFD
100
#E0F7FB
200
#BCF3FB
300
#8CEBF8
400
#4DE0F4
500
#0FD6F0
600
#0CABC0
700
#0A899A
800
#086B78
900
#0A4E57
950
#063137

Contrast Checker

Text on white

12.62:1

AA Pass AAA Pass

Text on black

1.66:1

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