#257C8B#257C8B

#257C8B is a mid, moderate teal. Relative luminance 0.167; OKLCH L 54.3% C 0.083 H 211.6°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#257C8B
RGB	rgb(37, 124, 139)
HSL	hsl(189, 58%, 35%)
HSV	hsv(189, 73%, 55%)
CMYK	cmyk(73.4%, 10.8%, 0%, 45.5%)
CIE-LAB	lab(47.84, -20.05, -15.54)
CIE-LCH	lch(47.84, 25.36, 217.77°)
OKLab	oklab(54.25% -0.0704 -0.0432)
OKLCH	oklch(54.25% 0.083 211.6)
XYZ	xyz(12.6288, 16.6712, 26.9734)
Luminance	0.1667 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257C8B #8B3425

analogous

#258B67 #257C8B #25498B

triadic

#257C8B #8B257C #7C8B25

tetradic

#257C8B #67258B #8B3425 #498B25

square

#257C8B #67258B #8B3425 #498B25

split-complementary

#257C8B #8B2549 #8B6725

monochromatic

#0B262A #18515B #257C8B #32A7BB #58C0D3

Accessibility & contrast

On white

4.84

#257C8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#257C8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257C8B

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257C8B	#FFFFFF	#000000	##FFFFFF
##257C8B	1.00	4.84	4.33	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#70788C

Deuteranopia (green-blind)

#626D8B

Tritanopia (blue-blind)

#008281

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #257c8b;
/* rgb */ color: rgb(37, 124, 139);
/* oklch */ color: oklch(54.3% 0.083 211.6);

Tailwind

colors: {
  custom: {
    50: '#6fa2ac',
    500: '#257c8b',
    950: '#000000',
  },
}

SCSS

$custom: #257c8b;
$custom-light: #6fa2ac;
$custom-dark: #000000;

JSON

{
  "hex": "#257c8b",
  "rgb": {
    "r": 37,
    "g": 124,
    "b": 139
  },
  "hsl": {
    "h": 188.824,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.54252,
    "c": 0.0826,
    "h": 211.6
  },
  "luminance": 0.16673
}

Semantic roles & 50–950 ramp

primary

#257C8B

secondary

#B76355

accent

#5D47E1

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #257C8B

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

Preview Lab → · Contrast checker → · Palette generator →