#12424B

#12424B

Color Values

HEX

#12424B

RGB

18, 66, 75

HSL

189.5, 61.3%, 18.2%

HSV

189.5, 76.0%, 29.4%

CMYK

76.0%, 12.0%, 0.0%, 70.6%

OKLCH

0.3517 0.0522 212.6

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#12424B

#4B1B12

Analogous

#124B37

#12254B

#12424B

Triadic

#12424B

#4B1242

#424B12

Split Complementary

#12424B

#4B1225

#4B3712

Tetradic

#12424B

#37124B

#4B1B12

#254B12

Color Blindness Simulation

Original

#12424B

Protanopia

#272749

Deuteranopia

#242048

Tritanopia

#144747

Achromatopsia

#383838

CSS Usage

background-color: #12424B;
color: #12424B;
border-color: #12424B;
Nearest Tailwind: Cyan 950 #083344

Tailwind Shades

50
#F3FAFB
100
#E4F4F6
200
#C5EAF1
300
#9CDBE7
400
#67C8DA
500
#31B5CE
600
#2791A5
700
#207484
800
#195A67
900
#16434B
950
#0E2A2F

Contrast Checker

Text on white

11.01:1

AA Pass AAA Pass

Text on black

1.91:1

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