#237E8B#237E8B

#237E8B is a mid, moderate teal. Relative luminance 0.171; OKLCH L 54.7% C 0.084 H 209.0°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#237E8B
RGB	rgb(35, 126, 139)
HSL	hsl(188, 60%, 34%)
HSV	hsv(188, 75%, 55%)
CMYK	cmyk(74.8%, 9.4%, 0%, 45.5%)
CIE-LAB	lab(48.44, -21.38, -14.64)
CIE-LCH	lch(48.44, 25.91, 214.39°)
OKLab	oklab(54.72% -0.0734 -0.0407)
OKLCH	oklch(54.72% 0.084 209)
XYZ	xyz(12.8122, 17.1416, 27.0545)
Luminance	0.1714 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237E8B #8B3023

analogous

#238B64 #237E8B #234A8B

triadic

#237E8B #8B237E #7E8B23

tetradic

#237E8B #64238B #8B3023 #4A8B23

square

#237E8B #64238B #8B3023 #4A8B23

split-complementary

#237E8B #8B234A #8B6423

monochromatic

#0A2529 #17525A #237E8B #2FAABC #54C4D4

Accessibility & contrast

On white

4.74

#237E8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#237E8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237E8B

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237E8B	#FFFFFF	#000000	##FFFFFF
##237E8B	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#72798C

Deuteranopia (green-blind)

#646E8B

Tritanopia (blue-blind)

#008482

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #237e8b;
/* rgb */ color: rgb(35, 126, 139);
/* oklch */ color: oklch(54.7% 0.084 209.0);

Tailwind

colors: {
  custom: {
    50: '#6fa3ac',
    500: '#237e8b',
    950: '#000000',
  },
}

SCSS

$custom: #237e8b;
$custom-light: #6fa3ac;
$custom-dark: #000000;

JSON

{
  "hex": "#237e8b",
  "rgb": {
    "r": 35,
    "g": 126,
    "b": 139
  },
  "hsl": {
    "h": 187.5,
    "s": 59.77,
    "l": 34.118
  },
  "oklch": {
    "l": 0.54719,
    "c": 0.08394,
    "h": 209
  },
  "luminance": 0.17143
}

Semantic roles & 50–950 ramp

primary

#237E8B

secondary

#B85F52

accent

#5945E3

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #237E8B

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

Preview Lab → · Contrast checker → · Palette generator →