#257E87#257E87

#257E87 is a mid, moderate teal. Relative luminance 0.171; OKLCH L 54.6% C 0.082 H 204.9°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#257E87
RGB	rgb(37, 126, 135)
HSL	hsl(186, 57%, 34%)
HSV	hsv(186, 73%, 53%)
CMYK	cmyk(72.6%, 6.7%, 0%, 47.1%)
CIE-LAB	lab(48.34, -22.41, -12.42)
CIE-LCH	lch(48.34, 25.62, 209.00°)
OKLab	oklab(54.6% -0.0743 -0.0345)
OKLCH	oklch(54.6% 0.082 204.9)
XYZ	xyz(12.5951, 17.0628, 25.5466)
Luminance	0.1706 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257E87 #872E25

analogous

#25875F #257E87 #254D87

triadic

#257E87 #87257E #7E8725

tetradic

#257E87 #5F2587 #872E25 #4D8725

square

#257E87 #5F2587 #872E25 #4D8725

split-complementary

#257E87 #87254D #875F25

monochromatic

#0B2427 #185157 #257E87 #32ABB7 #56C5D1

Accessibility & contrast

On white

4.76

#257E87 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#257E87 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257E87

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257E87	#FFFFFF	#000000	##FFFFFF
##257E87	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#737988

Deuteranopia (green-blind)

#656E87

Tritanopia (blue-blind)

#008381

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #257e87;
/* rgb */ color: rgb(37, 126, 135);
/* oklch */ color: oklch(54.6% 0.082 204.9);

Tailwind

colors: {
  custom: {
    50: '#6fa3aa',
    500: '#257e87',
    950: '#000000',
  },
}

SCSS

$custom: #257e87;
$custom-light: #6fa3aa;
$custom-dark: #000000;

JSON

{
  "hex": "#257e87",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 135
  },
  "hsl": {
    "h": 185.51,
    "s": 56.977,
    "l": 33.725
  },
  "oklch": {
    "l": 0.54604,
    "c": 0.08191,
    "h": 204.9
  },
  "luminance": 0.17064
}

Semantic roles & 50–950 ramp

primary

#257E87

secondary

#B55C53

accent

#5648E0

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #257E87

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

Preview Lab → · Contrast checker → · Palette generator →