#257C8A#257C8A

#257C8A is a mid, moderate teal. Relative luminance 0.166; OKLCH L 54.2% C 0.082 H 210.5°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#257C8A
RGB	rgb(37, 124, 138)
HSL	hsl(188, 58%, 34%)
HSV	hsv(188, 73%, 54%)
CMYK	cmyk(73.2%, 10.1%, 0%, 45.9%)
CIE-LAB	lab(47.81, -20.38, -15.00)
CIE-LCH	lch(47.81, 25.30, 216.36°)
OKLab	oklab(54.21% -0.0708 -0.0417)
OKLCH	oklch(54.21% 0.082 210.5)
XYZ	xyz(12.5561, 16.6421, 26.5903)
Luminance	0.1664 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257C8A #8A3325

analogous

#258A66 #257C8A #254A8A

triadic

#257C8A #8A257C #7C8A25

tetradic

#257C8A #66258A #8A3325 #4A8A25

square

#257C8A #66258A #8A3325 #4A8A25

split-complementary

#257C8A #8A254A #8A6625

monochromatic

#0B2529 #18515A #257C8A #32A7BA #57C1D2

Accessibility & contrast

On white

4.85

#257C8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#257C8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257C8A

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257C8A	#FFFFFF	#000000	##FFFFFF
##257C8A	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#70778B

Deuteranopia (green-blind)

#626D8A

Tritanopia (blue-blind)

#008280

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #257c8a;
/* rgb */ color: rgb(37, 124, 138);
/* oklch */ color: oklch(54.2% 0.082 210.5);

Tailwind

colors: {
  custom: {
    50: '#6fa2ac',
    500: '#257c8a',
    950: '#000000',
  },
}

SCSS

$custom: #257c8a;
$custom-light: #6fa2ac;
$custom-dark: #000000;

JSON

{
  "hex": "#257c8a",
  "rgb": {
    "r": 37,
    "g": 124,
    "b": 138
  },
  "hsl": {
    "h": 188.317,
    "s": 57.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.5421,
    "c": 0.08221,
    "h": 210.5
  },
  "luminance": 0.16644
}

Semantic roles & 50–950 ramp

primary

#257C8A

secondary

#B76254

accent

#5C47E1

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #257C8A

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

Preview Lab → · Contrast checker → · Palette generator →