#257E88#257E88

#257E88 is a mid, moderate teal. Relative luminance 0.171; OKLCH L 54.6% C 0.082 H 206.0°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#257E88
RGB	rgb(37, 126, 136)
HSL	hsl(186, 57%, 34%)
HSV	hsv(186, 73%, 53%)
CMYK	cmyk(72.8%, 7.4%, 0%, 46.7%)
CIE-LAB	lab(48.37, -22.09, -12.96)
CIE-LCH	lch(48.37, 25.61, 210.40°)
OKLab	oklab(54.65% -0.0738 -0.036)
OKLCH	oklch(54.65% 0.082 206)
XYZ	xyz(12.6658, 17.0911, 25.9192)
Luminance	0.1709 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257E88 #882F25

analogous

#258861 #257E88 #254D88

triadic

#257E88 #88257E #7E8825

tetradic

#257E88 #612588 #882F25 #4D8825

square

#257E88 #612588 #882F25 #4D8825

split-complementary

#257E88 #88254D #886125

monochromatic

#0B2528 #185158 #257E88 #32ABB8 #56C5D1

Accessibility & contrast

On white

4.75

#257E88 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#257E88 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257E88

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257E88	#FFFFFF	#000000	##FFFFFF
##257E88	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#737989

Deuteranopia (green-blind)

#656E88

Tritanopia (blue-blind)

#008481

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #257e88;
/* rgb */ color: rgb(37, 126, 136);
/* oklch */ color: oklch(54.6% 0.082 206.0);

Tailwind

colors: {
  custom: {
    50: '#6fa3aa',
    500: '#257e88',
    950: '#000000',
  },
}

SCSS

$custom: #257e88;
$custom-light: #6fa3aa;
$custom-dark: #000000;

JSON

{
  "hex": "#257e88",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 136
  },
  "hsl": {
    "h": 186.061,
    "s": 57.225,
    "l": 33.922
  },
  "oklch": {
    "l": 0.54645,
    "c": 0.08215,
    "h": 206
  },
  "luminance": 0.17093
}

Semantic roles & 50–950 ramp

primary

#257E88

secondary

#B65D53

accent

#5747E0

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #257E88

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

Preview Lab → · Contrast checker → · Palette generator →