#10233E

#10233E

Color Values

HEX

#10233E

RGB

16, 35, 62

HSL

215.2, 59.0%, 15.3%

HSV

215.2, 74.2%, 24.3%

CMYK

74.2%, 43.5%, 0.0%, 75.7%

OKLCH

0.2558 0.057 257.4

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#10233E

#3E2B10

Analogous

#103A3E

#14103E

#10233E

Triadic

#10233E

#3E1023

#233E10

Split Complementary

#10233E

#3E1410

#3A3E10

Tetradic

#10233E

#3E103A

#3E2B10

#103E14

Color Blindness Simulation

Original

#10233E

Protanopia

#181837

Deuteranopia

#171636

Tritanopia

#113231

Achromatopsia

#212121

CSS Usage

background-color: #10233E;
color: #10233E;
border-color: #10233E;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F4F7FB
100
#E4ECF6
200
#C6D8F0
300
#9EBCE6
400
#6997D8
500
#3472CB
600
#2A5CA2
700
#214982
800
#1A3965
900
#172C4A
950
#0E1C2F

Contrast Checker

Text on white

15.77:1

AA Pass AAA Pass

Text on black

1.33:1

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