#11233F

#11233F

Color Values

HEX

#11233F

RGB

17, 35, 63

HSL

216,5, 57,5%, 15,7%

HSV

216,5, 73,0%, 24,7%

CMYK

73,0%, 44,4%, 0,0%, 75,3%

OKLCH

0,2571 0,0582 258,9

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#11233F

#3F2D11

Analogous

#113A3F

#16113F

#11233F

Triadic

#11233F

#3F1123

#233F11

Split Complementary

#11233F

#3F1611

#3A3F11

Tetradic

#11233F

#3F113A

#3F2D11

#113F16

Color Blindness Simulation

Original

#11233F

Protanopia

#191938

Deuteranopia

#181637

Tritanopia

#123332

Achromatopsia

#212121

CSS Usage

background-color: #11233F;
color: #11233F;
border-color: #11233F;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F4F7FB
100
#E4EBF6
200
#C7D7F0
300
#9FBAE5
400
#6A95D7
500
#3670C9
600
#2B59A1
700
#234781
800
#1B3864
900
#172B4A
950
#0F1B2E

Contrast Checker

Text on white

15,72:1

AA Pass AAA Pass

Text on black

1,34:1

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