#257D7B#257D7B

#257D7B is a mid, moderate teal. Relative luminance 0.165; OKLCH L 53.9% C 0.081 H 192.8°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#257D7B
RGB	rgb(37, 125, 123)
HSL	hsl(179, 54%, 32%)
HSV	hsv(179, 70%, 49%)
CMYK	cmyk(70.4%, 0%, 1.6%, 51%)
CIE-LAB	lab(47.61, -25.67, -6.43)
CIE-LCH	lch(47.61, 26.46, 194.07°)
OKLab	oklab(53.88% -0.0787 -0.0179)
OKLCH	oklch(53.88% 0.081 192.8)
XYZ	xyz(11.6701, 16.4893, 21.3028)
Luminance	0.1649 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257D7B #7D2527

analogous

#257D4F #257D7B #25537D

triadic

#257D7B #7B257D #7D7B25

tetradic

#257D7B #4F257D #7D2527 #537D25

square

#257D7B #4F257D #7D2527 #537D25

split-complementary

#257D7B #7D2553 #7D4F25

monochromatic

#091F1E #174E4D #257D7B #33ACA9 #51CBC9

Accessibility & contrast

On white

4.89

#257D7B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#257D7B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257D7B

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257D7B	#FFFFFF	#000000	##FFFFFF
##257D7B	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#75777B

Deuteranopia (green-blind)

#686D7C

Tritanopia (blue-blind)

#00817C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #257d7b;
/* rgb */ color: rgb(37, 125, 123);
/* oklch */ color: oklch(53.9% 0.081 192.8);

Tailwind

colors: {
  custom: {
    50: '#6ea3a1',
    500: '#257d7b',
    950: '#000000',
  },
}

SCSS

$custom: #257d7b;
$custom-light: #6ea3a1;
$custom-dark: #000000;

JSON

{
  "hex": "#257d7b",
  "rgb": {
    "r": 37,
    "g": 125,
    "b": 123
  },
  "hsl": {
    "h": 178.636,
    "s": 54.321,
    "l": 31.765
  },
  "oklch": {
    "l": 0.53879,
    "c": 0.08076,
    "h": 192.8
  },
  "luminance": 0.16491
}

Semantic roles & 50–950 ramp

primary

#257D7B

secondary

#AF4F51

accent

#4A4DDE

background

#F7FAF9

surface

#EDF4F2

border

#C8CECC

text

#080F0E

muted

#7B7F7E

Preview Lab

Preview with #257D7B

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

Preview Lab → · Contrast checker → · Palette generator →