#237C9F#237C9F

#237C9F is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.1% C 0.097 H 229.3°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#237C9F
RGB	rgb(35, 124, 159)
HSL	hsl(197, 64%, 38%)
HSV	hsv(197, 78%, 62%)
CMYK	cmyk(78%, 22%, 0%, 37.6%)
CIE-LAB	lab(48.60, -13.43, -26.12)
CIE-LCH	lch(48.60, 29.36, 242.79°)
OKLab	oklab(55.12% -0.0632 -0.0734)
OKLCH	oklch(55.12% 0.097 229.3)
XYZ	xyz(14.1562, 17.2741, 35.3823)
Luminance	0.1728 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237C9F #9F4623

analogous

#239F84 #237C9F #233E9F

triadic

#237C9F #9F237C #7C9F23

tetradic

#237C9F #84239F #9F4623 #3E9F23

square

#237C9F #84239F #9F4623 #3E9F23

split-complementary

#237C9F #9F233E #9F8423

monochromatic

#0D2E3B #18556D #237C9F #2EA3D1 #60B9DC

Accessibility & contrast

On white

4.71

#237C9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#237C9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237C9F

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237C9F	#FFFFFF	#000000	##FFFFFF
##237C9F	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7AA1

Deuteranopia (green-blind)

#596E9F

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #237c9f;
/* rgb */ color: rgb(35, 124, 159);
/* oklch */ color: oklch(55.1% 0.097 229.3);

Tailwind

colors: {
  custom: {
    50: '#72a2bb',
    500: '#237c9f',
    950: '#000000',
  },
}

SCSS

$custom: #237c9f;
$custom-light: #72a2bb;
$custom-dark: #000000;

JSON

{
  "hex": "#237c9f",
  "rgb": {
    "r": 35,
    "g": 124,
    "b": 159
  },
  "hsl": {
    "h": 196.935,
    "s": 63.918,
    "l": 38.039
  },
  "oklch": {
    "l": 0.55116,
    "c": 0.09686,
    "h": 229.3
  },
  "luminance": 0.17276
}

Semantic roles & 50–950 ramp

primary

#237C9F

secondary

#C1795D

accent

#7041E7

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #237C9F

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

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