#257A7B#257A7B

#257A7B is a mid, moderate teal. Relative luminance 0.157; OKLCH L 53.1% C 0.079 H 196.2°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#257A7B
RGB	rgb(37, 122, 123)
HSL	hsl(181, 54%, 31%)
HSV	hsv(181, 70%, 48%)
CMYK	cmyk(69.9%, 0.8%, 0%, 51.8%)
CIE-LAB	lab(46.63, -24.14, -7.89)
CIE-LCH	lch(46.63, 25.40, 198.10°)
OKLab	oklab(53.09% -0.0755 -0.0219)
OKLCH	oklch(53.09% 0.079 196.2)
XYZ	xyz(11.2960, 15.7412, 21.1781)
Luminance	0.1574 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257A7B #7B2625

analogous

#257B51 #257A7B #254F7B

triadic

#257A7B #7B257A #7A7B25

tetradic

#257A7B #51257B #7B2625 #4F7B25

square

#257A7B #51257B #7B2625 #4F7B25

split-complementary

#257A7B #7B254F #7B5125

monochromatic

#091D1D #174B4C #257A7B #33A9AA #50C9CA

Accessibility & contrast

On white

5.06

#257A7B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#257A7B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257A7B

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257A7B	#FFFFFF	#000000	##FFFFFF
##257A7B	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#72747B

Deuteranopia (green-blind)

#656A7C

Tritanopia (blue-blind)

#007E7A

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #257a7b;
/* rgb */ color: rgb(37, 122, 123);
/* oklch */ color: oklch(53.1% 0.079 196.2);

Tailwind

colors: {
  custom: {
    50: '#6da1a1',
    500: '#257a7b',
    950: '#000000',
  },
}

SCSS

$custom: #257a7b;
$custom-light: #6da1a1;
$custom-dark: #000000;

JSON

{
  "hex": "#257a7b",
  "rgb": {
    "r": 37,
    "g": 122,
    "b": 123
  },
  "hsl": {
    "h": 180.698,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.53087,
    "c": 0.07858,
    "h": 196.2
  },
  "luminance": 0.15742
}

Semantic roles & 50–950 ramp

primary

#257A7B

secondary

#AD504F

accent

#4C4BDD

background

#F7F9F9

surface

#EDF2F2

border

#C8CCCC

text

#080F0E

muted

#7B7E7E

Preview Lab

Preview with #257A7B

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

Preview Lab → · Contrast checker → · Palette generator →