#237D8B#237D8B

#237D8B is a mid, moderate teal. Relative luminance 0.169; OKLCH L 54.5% C 0.084 H 210.2°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#237D8B
RGB	rgb(35, 125, 139)
HSL	hsl(188, 60%, 34%)
HSV	hsv(188, 75%, 55%)
CMYK	cmyk(74.8%, 10.1%, 0%, 45.5%)
CIE-LAB	lab(48.12, -20.85, -15.12)
CIE-LCH	lch(48.12, 25.76, 215.95°)
OKLab	oklab(54.46% -0.0724 -0.0421)
OKLCH	oklch(54.46% 0.084 210.2)
XYZ	xyz(12.6849, 16.8871, 27.0121)
Luminance	0.1689 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237D8B #8B3123

analogous

#238B65 #237D8B #23498B

triadic

#237D8B #8B237D #7D8B23

tetradic

#237D8B #65238B #8B3123 #498B23

square

#237D8B #65238B #8B3123 #498B23

split-complementary

#237D8B #8B2349 #8B6523

monochromatic

#0A2529 #17515A #237D8B #2FA9BC #54C3D4

Accessibility & contrast

On white

4.80

#237D8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#237D8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237D8B

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237D8B	#FFFFFF	#000000	##FFFFFF
##237D8B	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#71788C

Deuteranopia (green-blind)

#636E8B

Tritanopia (blue-blind)

#008381

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #237d8b;
/* rgb */ color: rgb(35, 125, 139);
/* oklch */ color: oklch(54.5% 0.084 210.2);

Tailwind

colors: {
  custom: {
    50: '#6fa3ac',
    500: '#237d8b',
    950: '#000000',
  },
}

SCSS

$custom: #237d8b;
$custom-light: #6fa3ac;
$custom-dark: #000000;

JSON

{
  "hex": "#237d8b",
  "rgb": {
    "r": 35,
    "g": 125,
    "b": 139
  },
  "hsl": {
    "h": 188.077,
    "s": 59.77,
    "l": 34.118
  },
  "oklch": {
    "l": 0.5446,
    "c": 0.08371,
    "h": 210.2
  },
  "luminance": 0.16889
}

Semantic roles & 50–950 ramp

primary

#237D8B

secondary

#B86052

accent

#5A45E3

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #237D8B

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

Preview Lab → · Contrast checker → · Palette generator →