#237D91#237D91

#237D91 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 54.7% C 0.086 H 216.2°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#237D91
RGB	rgb(35, 125, 145)
HSL	hsl(191, 61%, 35%)
HSV	hsv(191, 76%, 57%)
CMYK	cmyk(75.9%, 13.8%, 0%, 43.1%)
CIE-LAB	lab(48.34, -18.84, -18.31)
CIE-LCH	lch(48.34, 26.27, 224.18°)
OKLab	oklab(54.72% -0.0698 -0.0511)
OKLCH	oklch(54.72% 0.086 216.2)
XYZ	xyz(13.1354, 17.0673, 29.3846)
Luminance	0.1707 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237D91 #913723

analogous

#23916E #237D91 #234691

triadic

#237D91 #91237D #7D9123

tetradic

#237D91 #6E2391 #913723 #469123

square

#237D91 #6E2391 #913723 #469123

split-complementary

#237D91 #912346 #916E23

monochromatic

#0B282E #175260 #237D91 #2FA7C2 #58C0D7

Accessibility & contrast

On white

4.76

#237D91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#237D91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237D91

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237D91	#FFFFFF	#000000	##FFFFFF
##237D91	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7992

Deuteranopia (green-blind)

#606E91

Tritanopia (blue-blind)

#008483

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #237d91;
/* rgb */ color: rgb(35, 125, 145);
/* oklch */ color: oklch(54.7% 0.086 216.2);

Tailwind

colors: {
  custom: {
    50: '#70a3b1',
    500: '#237d91',
    950: '#000000',
  },
}

SCSS

$custom: #237d91;
$custom-light: #70a3b1;
$custom-dark: #000000;

JSON

{
  "hex": "#237d91",
  "rgb": {
    "r": 35,
    "g": 125,
    "b": 145
  },
  "hsl": {
    "h": 190.909,
    "s": 61.111,
    "l": 35.294
  },
  "oklch": {
    "l": 0.54719,
    "c": 0.08649,
    "h": 216.2
  },
  "luminance": 0.17069
}

Semantic roles & 50–950 ramp

primary

#237D91

secondary

#BB6755

accent

#6144E4

background

#F7FAFA

surface

#EDF3F5

border

#C8CDCF

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #237D91

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

Preview Lab → · Contrast checker → · Palette generator →