#257985

#257985

Color Values

HEX

#257985

RGB

37, 121, 133

HSL

187.5, 56.5%, 33.3%

HSV

187.5, 72.2%, 52.2%

CMYK

72.2%, 9.0%, 0.0%, 47.8%

OKLCH

0.5322 0.0796 208.8

Properties

Cool Dark Nearest: RAL 5021 Water Blue

Color Harmonies

Complementary

#257985

#853125

Analogous

#258561

#254985

#257985

Triadic

#257985

#852579

#798525

Split Complementary

#257985

#852549

#856125

Tetradic

#257985

#612585

#853125

#498525

Color Blindness Simulation

Original

#257985

Protanopia

#494A82

Deuteranopia

#443E81

Tritanopia

#29807F

Achromatopsia

#686868

CSS Usage

background-color: #257985;
color: #257985;
border-color: #257985;
Nearest Tailwind: Cyan 700 #0E7490

Tailwind Shades

50
#F4FAFB
100
#E5F4F6
200
#C7EAEF
300
#9FDCE4
400
#6BC9D6
500
#37B6C8
600
#2C91A0
700
#237480
800
#1C5B64
900
#184349
950
#0F2A2E

Contrast Checker

Text on white

5.06:1

AA Pass AAA Fail

Text on black

4.15:1

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