#237B99#237B99

#237B99 is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.6% C 0.092 H 225.6°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#237B99
RGB	rgb(35, 123, 153)
HSL	hsl(195, 63%, 37%)
HSV	hsv(195, 77%, 60%)
CMYK	cmyk(77.1%, 19.6%, 0%, 40%)
CIE-LAB	lab(48.03, -14.98, -23.48)
CIE-LCH	lch(48.03, 27.86, 237.46°)
OKLab	oklab(54.58% -0.0645 -0.0659)
OKLCH	oklch(54.58% 0.092 225.6)
XYZ	xyz(13.5235, 16.8215, 32.6650)
Luminance	0.1682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237B99 #994123

analogous

#23997C #237B99 #234099

triadic

#237B99 #99237B #7B9923

tetradic

#237B99 #7C2399 #994123 #409923

square

#237B99 #7C2399 #994123 #409923

split-complementary

#237B99 #992340 #997C23

monochromatic

#0C2B35 #185367 #237B99 #2EA3CB #5DBADA

Accessibility & contrast

On white

4.81

#237B99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#237B99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237B99

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237B99	#FFFFFF	#000000	##FFFFFF
##237B99	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B789B

Deuteranopia (green-blind)

#5B6D99

Tritanopia (blue-blind)

#008485

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #237b99;
/* rgb */ color: rgb(35, 123, 153);
/* oklch */ color: oklch(54.6% 0.092 225.6);

Tailwind

colors: {
  custom: {
    50: '#71a1b7',
    500: '#237b99',
    950: '#000000',
  },
}

SCSS

$custom: #237b99;
$custom-light: #71a1b7;
$custom-dark: #000000;

JSON

{
  "hex": "#237b99",
  "rgb": {
    "r": 35,
    "g": 123,
    "b": 153
  },
  "hsl": {
    "h": 195.254,
    "s": 62.766,
    "l": 36.863
  },
  "oklch": {
    "l": 0.54576,
    "c": 0.09217,
    "h": 225.6
  },
  "luminance": 0.16823
}

Semantic roles & 50–950 ramp

primary

#237B99

secondary

#BE7359

accent

#6C42E6

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F11

muted

#7B7E80

Preview Lab

Preview with #237B99

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

Preview Lab → · Contrast checker → · Palette generator →