#237B8F#237B8F

#237B8F is a mid, moderate cyan. Relative luminance 0.165; OKLCH L 54.1% C 0.085 H 216.6°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#237B8F
RGB	rgb(35, 123, 143)
HSL	hsl(191, 61%, 35%)
HSV	hsv(191, 76%, 56%)
CMYK	cmyk(75.5%, 14%, 0%, 43.9%)
CIE-LAB	lab(47.63, -18.44, -18.22)
CIE-LCH	lch(47.63, 25.92, 224.67°)
OKLab	oklab(54.12% -0.0685 -0.0508)
OKLCH	oklch(54.12% 0.085 216.6)
XYZ	xyz(12.7319, 16.5049, 28.4960)
Luminance	0.1651 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237B8F #8F3723

analogous

#238F6D #237B8F #23458F

triadic

#237B8F #8F237B #7B8F23

tetradic

#237B8F #6D238F #8F3723 #458F23

square

#237B8F #6D238F #8F3723 #458F23

split-complementary

#237B8F #8F2345 #8F6D23

monochromatic

#0B262D #17515E #237B8F #2FA5C0 #57BED6

Accessibility & contrast

On white

4.88

#237B8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#237B8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237B8F

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237B8F	#FFFFFF	#000000	##FFFFFF
##237B8F	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7790

Deuteranopia (green-blind)

#5F6C8F

Tritanopia (blue-blind)

#008281

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #237b8f;
/* rgb */ color: rgb(35, 123, 143);
/* oklch */ color: oklch(54.1% 0.085 216.6);

Tailwind

colors: {
  custom: {
    50: '#6fa1af',
    500: '#237b8f',
    950: '#000000',
  },
}

SCSS

$custom: #237b8f;
$custom-light: #6fa1af;
$custom-dark: #000000;

JSON

{
  "hex": "#237b8f",
  "rgb": {
    "r": 35,
    "g": 123,
    "b": 143
  },
  "hsl": {
    "h": 191.111,
    "s": 60.674,
    "l": 34.902
  },
  "oklch": {
    "l": 0.54118,
    "c": 0.08535,
    "h": 216.6
  },
  "luminance": 0.16506
}

Semantic roles & 50–950 ramp

primary

#237B8F

secondary

#BA6754

accent

#6244E4

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080F10

muted

#7B7E7F

Preview Lab

Preview with #237B8F

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

Preview Lab → · Contrast checker → · Palette generator →