#257F8A#257F8A

#257F8A is a mid, moderate teal. Relative luminance 0.174; OKLCH L 55.0% C 0.083 H 206.9°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#257F8A
RGB	rgb(37, 127, 138)
HSL	hsl(187, 58%, 34%)
HSV	hsv(187, 73%, 54%)
CMYK	cmyk(73.2%, 8%, 0%, 45.9%)
CIE-LAB	lab(48.77, -21.96, -13.54)
CIE-LCH	lch(48.77, 25.80, 211.66°)
OKLab	oklab(54.98% -0.074 -0.0376)
OKLCH	oklch(54.98% 0.083 206.9)
XYZ	xyz(12.9378, 17.4055, 26.7176)
Luminance	0.1741 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257F8A #8A3025

analogous

#258A63 #257F8A #254D8A

triadic

#257F8A #8A257F #7F8A25

tetradic

#257F8A #63258A #8A3025 #4D8A25

square

#257F8A #63258A #8A3025 #4D8A25

split-complementary

#257F8A #8A254D #8A6325

monochromatic

#0B2629 #18535A #257F8A #32ABBA #57C5D2

Accessibility & contrast

On white

4.69

#257F8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#257F8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257F8A

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257F8A	#FFFFFF	#000000	##FFFFFF
##257F8A	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#747A8B

Deuteranopia (green-blind)

#666F8A

Tritanopia (blue-blind)

#008582

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #257f8a;
/* rgb */ color: rgb(37, 127, 138);
/* oklch */ color: oklch(55.0% 0.083 206.9);

Tailwind

colors: {
  custom: {
    50: '#70a4ac',
    500: '#257f8a',
    950: '#000000',
  },
}

SCSS

$custom: #257f8a;
$custom-light: #70a4ac;
$custom-dark: #000000;

JSON

{
  "hex": "#257f8a",
  "rgb": {
    "r": 37,
    "g": 127,
    "b": 138
  },
  "hsl": {
    "h": 186.535,
    "s": 57.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.54985,
    "c": 0.08304,
    "h": 206.9
  },
  "luminance": 0.17407
}

Semantic roles & 50–950 ramp

primary

#257F8A

secondary

#B75F54

accent

#5847E1

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #257F8A

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

Preview Lab → · Contrast checker → · Palette generator →