#1F4458

#1F4458

Color Values

HEX

#1F4458

RGB

31, 68, 88

HSL

201.1, 47.9%, 23.3%

HSV

201.1, 64.8%, 34.5%

CMYK

64.8%, 22.7%, 0.0%, 65.5%

OKLCH

0.3688 0.0545 234.6

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#1F4458

#58331F

Analogous

#1F584F

#1F2758

#1F4458

Triadic

#1F4458

#581F44

#44581F

Split Complementary

#1F4458

#581F27

#584F1F

Tetradic

#1F4458

#4F1F58

#58331F

#27581F

Color Blindness Simulation

Original

#1F4458

Protanopia

#2F2F53

Deuteranopia

#2D2A52

Tritanopia

#214F4E

Achromatopsia

#3E3E3E

CSS Usage

background-color: #1F4458;
color: #1F4458;
border-color: #1F4458;
Nearest Tailwind: Cyan 900 #164E63

Tailwind Shades

50
#F4F8FA
100
#E6EFF4
200
#CAE0EC
300
#A4CADF
400
#73AECE
500
#4292BD
600
#357497
700
#2B5D79
800
#21495E
900
#1C3745
950
#11232C

Contrast Checker

Text on white

10.37:1

AA Pass AAA Pass

Text on black

2.03:1

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