#21507F

#21507F

Color Values

HEX

#21507F

RGB

33, 80, 127

HSL

210.0, 58.8%, 31.4%

HSV

210.0, 74.0%, 49.8%

CMYK

74.0%, 37.0%, 0.0%, 50.2%

OKLCH

0.4231 0.0936 251.0

Properties

Cool Dark Nearest: RAL 5019 Capri Blue

Color Harmonies

Complementary

#21507F

#7F5021

Analogous

#217F7F

#21217F

#21507F

Triadic

#21507F

#7F2150

#507F21

Split Complementary

#21507F

#7F2121

#7F7F21

Tetradic

#21507F

#7F217F

#7F5021

#217F21

Color Blindness Simulation

Original

#21507F

Protanopia

#353674

Deuteranopia

#332F71

Tritanopia

#236B69

Achromatopsia

#494949

CSS Usage

background-color: #21507F;
color: #21507F;
border-color: #21507F;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F4F7FB
100
#E4EDF6
200
#C6DBF0
300
#9EC2E6
400
#69A1D8
500
#3580CA
600
#2A66A2
700
#225282
800
#1A4065
900
#17304A
950
#0E1F2F

Contrast Checker

Text on white

8.34:1

AA Pass AAA Pass

Text on black

2.52:1

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