#21598C

#21598C

Color Values

HEX

#21598C

RGB

33, 89, 140

HSL

208.6, 61.8%, 33.9%

HSV

208.6, 76.4%, 54.9%

CMYK

76.4%, 36.4%, 0.0%, 45.1%

OKLCH

0.4533 0.1018 249.4

Properties

Cool Dark Nearest: RAL 5019 Capri Blue

Color Harmonies

Complementary

#21598C

#8C5421

Analogous

#218C89

#21248C

#21598C

Triadic

#21598C

#8C2159

#598C21

Split Complementary

#21598C

#8C2124

#8C8921

Tetradic

#21598C

#89218C

#8C5421

#248C21

Color Blindness Simulation

Original

#21598C

Protanopia

#393A80

Deuteranopia

#36327D

Tritanopia

#247674

Achromatopsia

#515151

CSS Usage

background-color: #21598C;
color: #21598C;
border-color: #21598C;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F3F8FB
100
#E4EEF7
200
#C5DCF1
300
#9CC4E8
400
#66A3DB
500
#3183CE
600
#2769A5
700
#1F5484
800
#184267
900
#16324B
950
#0E1F30

Contrast Checker

Text on white

7.31:1

AA Pass AAA Pass

Text on black

2.87:1

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