#237C9D#237C9D

#237C9D is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.0% C 0.095 H 227.8°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#237C9D
RGB	rgb(35, 124, 157)
HSL	hsl(196, 64%, 38%)
HSV	hsv(196, 78%, 62%)
CMYK	cmyk(77.7%, 21%, 0%, 38.4%)
CIE-LAB	lab(48.52, -14.14, -25.08)
CIE-LCH	lch(48.52, 28.79, 240.59°)
OKLab	oklab(55.02% -0.064 -0.0704)
OKLCH	oklch(55.02% 0.095 227.8)
XYZ	xyz(13.9841, 17.2053, 34.4757)
Luminance	0.1721 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237C9D #9D4423

analogous

#239D81 #237C9D #233F9D

triadic

#237C9D #9D237C #7C9D23

tetradic

#237C9D #81239D #9D4423 #3F9D23

square

#237C9D #81239D #9D4423 #3F9D23

split-complementary

#237C9D #9D233F #9D8123

monochromatic

#0D2D39 #18546B #237C9D #2EA4CF #5FBADB

Accessibility & contrast

On white

4.73

#237C9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#237C9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237C9D

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237C9D	#FFFFFF	#000000	##FFFFFF
##237C9D	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7A9F

Deuteranopia (green-blind)

#5A6E9D

Tritanopia (blue-blind)

#008587

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #237c9d;
/* rgb */ color: rgb(35, 124, 157);
/* oklch */ color: oklch(55.0% 0.095 227.8);

Tailwind

colors: {
  custom: {
    50: '#71a2ba',
    500: '#237c9d',
    950: '#000000',
  },
}

SCSS

$custom: #237c9d;
$custom-light: #71a2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#237c9d",
  "rgb": {
    "r": 35,
    "g": 124,
    "b": 157
  },
  "hsl": {
    "h": 196.23,
    "s": 63.542,
    "l": 37.647
  },
  "oklch": {
    "l": 0.55019,
    "c": 0.09513,
    "h": 227.8
  },
  "luminance": 0.17207
}

Semantic roles & 50–950 ramp

primary

#237C9D

secondary

#C0775C

accent

#6E41E7

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F11

muted

#7B7E80

Preview Lab

Preview with #237C9D

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

Preview Lab → · Contrast checker → · Palette generator →