#257E7B#257E7B

#257E7B is a mid, moderate teal. Relative luminance 0.167; OKLCH L 54.1% C 0.082 H 191.7°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#257E7B
RGB	rgb(37, 126, 123)
HSL	hsl(178, 55%, 32%)
HSV	hsv(178, 71%, 49%)
CMYK	cmyk(70.6%, 0%, 2.4%, 50.6%)
CIE-LAB	lab(47.94, -26.17, -5.95)
CIE-LCH	lch(47.94, 26.84, 192.81°)
OKLab	oklab(54.14% -0.0798 -0.0166)
OKLCH	oklch(54.14% 0.082 191.7)
XYZ	xyz(11.7973, 16.7437, 21.3452)
Luminance	0.1674 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257E7B #7E2528

analogous

#257E4F #257E7B #25547E

triadic

#257E7B #7B257E #7E7B25

tetradic

#257E7B #4F257E #7E2528 #547E25

square

#257E7B #4F257E #7E2528 #547E25

split-complementary

#257E7B #7E2554 #7E4F25

monochromatic

#091F1F #174F4D #257E7B #33ADA9 #51CCC8

Accessibility & contrast

On white

4.83

#257E7B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#257E7B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257E7B

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257E7B	#FFFFFF	#000000	##FFFFFF
##257E7B	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#76777B

Deuteranopia (green-blind)

#696E7C

Tritanopia (blue-blind)

#00827D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #257e7b;
/* rgb */ color: rgb(37, 126, 123);
/* oklch */ color: oklch(54.1% 0.082 191.7);

Tailwind

colors: {
  custom: {
    50: '#6ea4a1',
    500: '#257e7b',
    950: '#000000',
  },
}

SCSS

$custom: #257e7b;
$custom-light: #6ea4a1;
$custom-dark: #000000;

JSON

{
  "hex": "#257e7b",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 123
  },
  "hsl": {
    "h": 177.978,
    "s": 54.601,
    "l": 31.961
  },
  "oklch": {
    "l": 0.54143,
    "c": 0.08155,
    "h": 191.7
  },
  "luminance": 0.16745
}

Semantic roles & 50–950 ramp

primary

#257E7B

secondary

#B04F52

accent

#4A4FDE

background

#F7FAF9

surface

#EDF4F2

border

#C8CECC

text

#080F0E

muted

#7B7F7E

Preview Lab

Preview with #257E7B

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

Preview Lab → · Contrast checker → · Palette generator →