#257D8D#257D8D

#257D8D is a mid, moderate teal. Relative luminance 0.170; OKLCH L 54.6% C 0.084 H 212.4°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#257D8D
RGB	rgb(37, 125, 141)
HSL	hsl(189, 58%, 35%)
HSV	hsv(189, 74%, 55%)
CMYK	cmyk(73.8%, 11.3%, 0%, 44.7%)
CIE-LAB	lab(48.24, -19.92, -16.11)
CIE-LCH	lch(48.24, 25.62, 218.97°)
OKLab	oklab(54.6% -0.0706 -0.0449)
OKLCH	oklch(54.6% 0.084 212.4)
XYZ	xyz(12.9022, 16.9821, 27.7920)
Luminance	0.1698 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257D8D #8D3525

analogous

#258D69 #257D8D #25498D

triadic

#257D8D #8D257D #7D8D25

tetradic

#257D8D #69258D #8D3525 #498D25

square

#257D8D #69258D #8D3525 #498D25

split-complementary

#257D8D #8D2549 #8D6925

monochromatic

#0C272C #18525D #257D8D #32A8BD #59C1D3

Accessibility & contrast

On white

4.78

#257D8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#257D8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257D8D

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257D8D	#FFFFFF	#000000	##FFFFFF
##257D8D	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#71798E

Deuteranopia (green-blind)

#626E8D

Tritanopia (blue-blind)

#008382

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #257d8d;
/* rgb */ color: rgb(37, 125, 141);
/* oklch */ color: oklch(54.6% 0.084 212.4);

Tailwind

colors: {
  custom: {
    50: '#70a3ae',
    500: '#257d8d',
    950: '#000000',
  },
}

SCSS

$custom: #257d8d;
$custom-light: #70a3ae;
$custom-dark: #000000;

JSON

{
  "hex": "#257d8d",
  "rgb": {
    "r": 37,
    "g": 125,
    "b": 141
  },
  "hsl": {
    "h": 189.231,
    "s": 58.427,
    "l": 34.902
  },
  "oklch": {
    "l": 0.54595,
    "c": 0.08364,
    "h": 212.4
  },
  "luminance": 0.16984
}

Semantic roles & 50–950 ramp

primary

#257D8D

secondary

#B86556

accent

#5E46E2

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #257D8D

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

Preview Lab → · Contrast checker → · Palette generator →