#257CCE

#257CCE

Color Values

HEX

#257CCE

RGB

37, 124, 206

HSL

209.1, 69.5%, 47.6%

HSV

209.1, 82.0%, 80.8%

CMYK

82.0%, 39.8%, 0.0%, 19.2%

OKLCH

0.5778 0.1493 251.3

Properties

Cool Light Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#257CCE

#CE7725

Analogous

#25CECB

#2528CE

#257CCE

Triadic

#257CCE

#CE257C

#7CCE25

Split Complementary

#257CCE

#CE2528

#CECB25

Tetradic

#257CCE

#CB25CE

#CE7725

#28CE25

Color Blindness Simulation

Original

#257CCE

Protanopia

#4B4BBA

Deuteranopia

#463FB5

Tritanopia

#29AAA7

Achromatopsia

#6F6F6F

CSS Usage

background-color: #257CCE;
color: #257CCE;
border-color: #257CCE;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F7FC
100
#E3EDF8
200
#C2DCF4
300
#97C3EC
400
#5FA3E2
500
#2782D8
600
#1F68AD
700
#19538A
800
#13416C
900
#12314F
950
#0B1F32

Contrast Checker

Text on white

4.33:1

AA Fail AAA Fail

Text on black

4.85:1

AA Pass 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