#237D9D#237D9D

#237D9D is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.3% C 0.095 H 226.7°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#237D9D
RGB	rgb(35, 125, 157)
HSL	hsl(196, 64%, 38%)
HSV	hsv(196, 78%, 62%)
CMYK	cmyk(77.7%, 20.4%, 0%, 38.4%)
CIE-LAB	lab(48.83, -14.70, -24.59)
CIE-LCH	lch(48.83, 28.65, 239.14°)
OKLab	oklab(55.27% -0.0649 -0.069)
OKLCH	oklch(55.27% 0.095 226.7)
XYZ	xyz(14.1101, 17.4572, 34.5177)
Luminance	0.1746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237D9D #9D4323

analogous

#239D80 #237D9D #23409D

triadic

#237D9D #9D237D #7D9D23

tetradic

#237D9D #80239D #9D4323 #409D23

square

#237D9D #80239D #9D4323 #409D23

split-complementary

#237D9D #9D2340 #9D8023

monochromatic

#0D2D39 #18556B #237D9D #2EA5CF #5FBBDB

Accessibility & contrast

On white

4.68

#237D9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#237D9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237D9D

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237D9D	#FFFFFF	#000000	##FFFFFF
##237D9D	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7B9F

Deuteranopia (green-blind)

#5B6F9D

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #237d9d;
/* rgb */ color: rgb(35, 125, 157);
/* oklch */ color: oklch(55.3% 0.095 226.7);

Tailwind

colors: {
  custom: {
    50: '#71a2ba',
    500: '#237d9d',
    950: '#000000',
  },
}

SCSS

$custom: #237d9d;
$custom-light: #71a2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#237d9d",
  "rgb": {
    "r": 35,
    "g": 125,
    "b": 157
  },
  "hsl": {
    "h": 195.738,
    "s": 63.542,
    "l": 37.647
  },
  "oklch": {
    "l": 0.5527,
    "c": 0.09478,
    "h": 226.7
  },
  "luminance": 0.17459
}

Semantic roles & 50–950 ramp

primary

#237D9D

secondary

#C0765C

accent

#6D41E7

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #237D9D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →