#0A0F2D

#0A0F2D

Color Values

HEX

#0A0F2D

RGB

10, 15, 45

HSL

231.4, 63.6%, 10.8%

HSV

231.4, 77.8%, 17.6%

CMYK

77.8%, 66.7%, 0.0%, 82.4%

OKLCH

0.185 0.0604 272.0

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#0A0F2D

#2D280A

Analogous

#0A212D

#170A2D

#0A0F2D

Triadic

#0A0F2D

#2D0A0F

#0F2D0A

Split Complementary

#0A0F2D

#2D170A

#212D0A

Tetradic

#0A0F2D

#2D0A21

#2D280A

#0A2D17

Color Blindness Simulation

Original

#0A0F2D

Protanopia

#0C0C26

Deuteranopia

#0C0C24

Tritanopia

#0A201F

Achromatopsia

#101010

CSS Usage

background-color: #0A0F2D;
color: #0A0F2D;
border-color: #0A0F2D;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F3F4FB
100
#E4E6F7
200
#C5CBF2
300
#9BA6E9
400
#6576DD
500
#2E46D1
600
#2538A7
700
#1E2D85
800
#172368
900
#151D4C
950
#0D1230

Contrast Checker

Text on white

18.76:1

AA Pass AAA Pass

Text on black

1.12:1

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