#31688C

#31688C

Color Values

HEX

#31688C

RGB

49, 104, 140

HSL

203.7, 48.1%, 37.1%

HSV

203.7, 65.0%, 54.9%

CMYK

65.0%, 25.7%, 0.0%, 45.1%

OKLCH

0.4963 0.0818 240.0

Properties

Cool Dark Nearest: steelblue 4

Color Harmonies

Complementary

#31688C

#8C5531

Analogous

#318C83

#313B8C

#31688C

Triadic

#31688C

#8C3168

#688C31

Split Complementary

#31688C

#8C313B

#8C8331

Tetradic

#31688C

#83318C

#8C5531

#3B8C31

Color Blindness Simulation

Original

#31688C

Protanopia

#494983

Deuteranopia

#464281

Tritanopia

#347C7B

Achromatopsia

#5F5F5F

CSS Usage

background-color: #31688C;
color: #31688C;
border-color: #31688C;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F4F8FA
100
#E6EFF4
200
#CADFEC
300
#A4C8DF
400
#73AACE
500
#428CBD
600
#357097
700
#2A5A79
800
#21465E
900
#1B3545
950
#11212C

Contrast Checker

Text on white

6.02:1

AA Pass AAA Fail

Text on black

3.49:1

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