#237C91#237C91

#237C91 is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.5% C 0.086 H 217.4°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#237C91
RGB	rgb(35, 124, 145)
HSL	hsl(191, 61%, 35%)
HSV	hsv(191, 76%, 57%)
CMYK	cmyk(75.9%, 14.5%, 0%, 43.1%)
CIE-LAB	lab(48.03, -18.30, -18.79)
CIE-LCH	lch(48.03, 26.23, 225.76°)
OKLab	oklab(54.46% -0.0687 -0.0525)
OKLCH	oklch(54.46% 0.086 217.4)
XYZ	xyz(13.0095, 16.8154, 29.3426)
Luminance	0.1682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237C91 #913823

analogous

#23916F #237C91 #234591

triadic

#237C91 #91237C #7C9123

tetradic

#237C91 #6F2391 #913823 #459123

square

#237C91 #6F2391 #913823 #459123

split-complementary

#237C91 #912345 #916F23

monochromatic

#0B282E #175260 #237C91 #2FA6C2 #58BED7

Accessibility & contrast

On white

4.81

#237C91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#237C91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237C91

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237C91	#FFFFFF	#000000	##FFFFFF
##237C91	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)

#6E7892

Deuteranopia (green-blind)

#5F6D91

Tritanopia (blue-blind)

#008383

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #237c91;
/* rgb */ color: rgb(35, 124, 145);
/* oklch */ color: oklch(54.5% 0.086 217.4);

Tailwind

colors: {
  custom: {
    50: '#70a2b1',
    500: '#237c91',
    950: '#000000',
  },
}

SCSS

$custom: #237c91;
$custom-light: #70a2b1;
$custom-dark: #000000;

JSON

{
  "hex": "#237c91",
  "rgb": {
    "r": 35,
    "g": 124,
    "b": 145
  },
  "hsl": {
    "h": 191.455,
    "s": 61.111,
    "l": 35.294
  },
  "oklch": {
    "l": 0.54463,
    "c": 0.08649,
    "h": 217.4
  },
  "luminance": 0.16817
}

Semantic roles & 50–950 ramp

primary

#237C91

secondary

#BB6855

accent

#6244E4

background

#F7F9FA

surface

#EDF2F5

border

#C8CCCF

text

#080F10

muted

#7B7E7F

Preview Lab

Preview with #237C91

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

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