#237C9E#237C9E

#237C9E is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.1% C 0.096 H 228.5°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#237C9E
RGB	rgb(35, 124, 158)
HSL	hsl(197, 64%, 38%)
HSV	hsv(197, 78%, 62%)
CMYK	cmyk(77.8%, 21.5%, 0%, 38%)
CIE-LAB	lab(48.56, -13.78, -25.60)
CIE-LCH	lch(48.56, 29.07, 241.70°)
OKLab	oklab(55.07% -0.0636 -0.0719)
OKLCH	oklch(55.07% 0.096 228.5)
XYZ	xyz(14.0698, 17.2396, 34.9272)
Luminance	0.1724 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237C9E #9E4523

analogous

#239E82 #237C9E #233F9E

triadic

#237C9E #9E237C #7C9E23

tetradic

#237C9E #82239E #9E4523 #3F9E23

square

#237C9E #82239E #9E4523 #3F9E23

split-complementary

#237C9E #9E233F #9E8223

monochromatic

#0D2D3A #18556C #237C9E #2EA3D0 #60B9DC

Accessibility & contrast

On white

4.72

#237C9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#237C9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237C9E

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237C9E	#FFFFFF	#000000	##FFFFFF
##237C9E	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7AA0

Deuteranopia (green-blind)

#5A6E9E

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #237c9e;
/* rgb */ color: rgb(35, 124, 158);
/* oklch */ color: oklch(55.1% 0.096 228.5);

Tailwind

colors: {
  custom: {
    50: '#72a2ba',
    500: '#237c9e',
    950: '#000000',
  },
}

SCSS

$custom: #237c9e;
$custom-light: #72a2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#237c9e",
  "rgb": {
    "r": 35,
    "g": 124,
    "b": 158
  },
  "hsl": {
    "h": 196.585,
    "s": 63.731,
    "l": 37.843
  },
  "oklch": {
    "l": 0.55067,
    "c": 0.09599,
    "h": 228.5
  },
  "luminance": 0.17241
}

Semantic roles & 50–950 ramp

primary

#237C9E

secondary

#C1785C

accent

#6F41E7

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F11

muted

#7B7E80

Preview Lab

Preview with #237C9E

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

Preview Lab → · Contrast checker → · Palette generator →