#152C3D

#152C3D

Color Values

HEX

#152C3D

RGB

21, 44, 61

HSL

205,5, 48,8%, 16,1%

HSV

205,5, 65,6%, 23,9%

CMYK

65,6%, 27,9%, 0,0%, 76,1%

OKLCH

0,2829 0,0428 242,4

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#152C3D

#3D2615

Analogous

#153D3A

#15183D

#152C3D

Triadic

#152C3D

#3D152C

#2C3D15

Split Complementary

#152C3D

#3D1518

#3D3A15

Tetradic

#152C3D

#3A153D

#3D2615

#183D15

Color Blindness Simulation

Original

#152C3D

Protanopia

#1F1F39

Deuteranopia

#1E1C38

Tritanopia

#163635

Achromatopsia

#282828

CSS Usage

background-color: #152C3D;
color: #152C3D;
border-color: #152C3D;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F4F8FB
100
#E6EEF5
200
#CADEED
300
#A4C6E0
400
#73A8CF
500
#4189BE
600
#346D98
700
#2A5879
800
#21445F
900
#1B3446
950
#11212C

Contrast Checker

Text on white

14,39:1

AA Pass AAA Pass

Text on black

1,46:1

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