#257C81#257C81

#257C81 is a mid, moderate teal. Relative luminance 0.164; OKLCH L 53.8% C 0.080 H 200.7°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#257C81
RGB	rgb(37, 124, 129)
HSL	hsl(183, 55%, 33%)
HSV	hsv(183, 71%, 51%)
CMYK	cmyk(71.3%, 3.9%, 0%, 49.4%)
CIE-LAB	lab(47.48, -23.29, -10.17)
CIE-LCH	lch(47.48, 25.41, 203.59°)
OKLab	oklab(53.84% -0.0749 -0.0282)
OKLCH	oklch(53.84% 0.08 200.7)
XYZ	xyz(11.9313, 16.3922, 23.2998)
Luminance	0.1639 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257C81 #812A25

analogous

#258158 #257C81 #254E81

triadic

#257C81 #81257C #7C8125

tetradic

#257C81 #582581 #812A25 #4E8125

square

#257C81 #582581 #812A25 #4E8125

split-complementary

#257C81 #81254E #815825

monochromatic

#0A2122 #174E51 #257C81 #33AAB1 #53C7CE

Accessibility & contrast

On white

4.91

#257C81 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#257C81 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257C81

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257C81	#FFFFFF	#000000	##FFFFFF
##257C81	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#737681

Deuteranopia (green-blind)

#656C81

Tritanopia (blue-blind)

#00817D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #257c81;
/* rgb */ color: rgb(37, 124, 129);
/* oklch */ color: oklch(53.8% 0.080 200.7);

Tailwind

colors: {
  custom: {
    50: '#6ea2a5',
    500: '#257c81',
    950: '#000000',
  },
}

SCSS

$custom: #257c81;
$custom-light: #6ea2a5;
$custom-dark: #000000;

JSON

{
  "hex": "#257c81",
  "rgb": {
    "r": 37,
    "g": 124,
    "b": 129
  },
  "hsl": {
    "h": 183.261,
    "s": 55.422,
    "l": 32.549
  },
  "oklch": {
    "l": 0.53844,
    "c": 0.08,
    "h": 200.7
  },
  "luminance": 0.16394
}

Semantic roles & 50–950 ramp

primary

#257C81

secondary

#B25550

accent

#5149DF

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#080F0F

muted

#7B7F7F

Preview Lab

Preview with #257C81

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

Preview Lab → · Contrast checker → · Palette generator →