#257D87#257D87

#257D87 is a mid, moderate teal. Relative luminance 0.168; OKLCH L 54.3% C 0.082 H 206.1°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#257D87
RGB	rgb(37, 125, 135)
HSL	hsl(186, 57%, 34%)
HSV	hsv(186, 73%, 53%)
CMYK	cmyk(72.6%, 7.4%, 0%, 47.1%)
CIE-LAB	lab(48.02, -21.89, -12.91)
CIE-LCH	lch(48.02, 25.41, 210.53°)
OKLab	oklab(54.34% -0.0732 -0.0359)
OKLCH	oklch(54.34% 0.082 206.1)
XYZ	xyz(12.4678, 16.8084, 25.5042)
Luminance	0.1681 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257D87 #872F25

analogous

#258760 #257D87 #254C87

triadic

#257D87 #87257D #7D8725

tetradic

#257D87 #602587 #872F25 #4C8725

square

#257D87 #602587 #872F25 #4C8725

split-complementary

#257D87 #87254C #876025

monochromatic

#0B2427 #185157 #257D87 #32A9B7 #56C4D1

Accessibility & contrast

On white

4.81

#257D87 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#257D87 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257D87

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257D87	#FFFFFF	#000000	##FFFFFF
##257D87	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)

#727888

Deuteranopia (green-blind)

#646E87

Tritanopia (blue-blind)

#008380

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #257d87;
/* rgb */ color: rgb(37, 125, 135);
/* oklch */ color: oklch(54.3% 0.082 206.1);

Tailwind

colors: {
  custom: {
    50: '#6fa3aa',
    500: '#257d87',
    950: '#000000',
  },
}

SCSS

$custom: #257d87;
$custom-light: #6fa3aa;
$custom-dark: #000000;

JSON

{
  "hex": "#257d87",
  "rgb": {
    "r": 37,
    "g": 125,
    "b": 135
  },
  "hsl": {
    "h": 186.122,
    "s": 56.977,
    "l": 33.725
  },
  "oklch": {
    "l": 0.54344,
    "c": 0.08153,
    "h": 206.1
  },
  "luminance": 0.1681
}

Semantic roles & 50–950 ramp

primary

#257D87

secondary

#B55D53

accent

#5748E0

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #257D87

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

Preview Lab → · Contrast checker → · Palette generator →