#257E8F#257E8F

#257E8F is a mid, moderate teal. Relative luminance 0.173; OKLCH L 54.9% C 0.085 H 213.3°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#257E8F
RGB	rgb(37, 126, 143)
HSL	hsl(190, 59%, 35%)
HSV	hsv(190, 74%, 56%)
CMYK	cmyk(74.1%, 11.9%, 0%, 43.9%)
CIE-LAB	lab(48.63, -19.79, -16.69)
CIE-LCH	lch(48.63, 25.89, 220.14°)
OKLab	oklab(54.94% -0.0708 -0.0465)
OKLCH	oklch(54.94% 0.085 213.3)
XYZ	xyz(13.1796, 17.2966, 28.6253)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257E8F #8F3625

analogous

#258F6B #257E8F #25498F

triadic

#257E8F #8F257E #7E8F25

tetradic

#257E8F #6B258F #8F3625 #498F25

square

#257E8F #6B258F #8F3625 #498F25

split-complementary

#257E8F #8F2549 #8F6B25

monochromatic

#0C282E #18535E #257E8F #32A9C0 #5AC1D4

Accessibility & contrast

On white

4.71

#257E8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#257E8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257E8F

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257E8F	#FFFFFF	#000000	##FFFFFF
##257E8F	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#717A90

Deuteranopia (green-blind)

#636F8F

Tritanopia (blue-blind)

#008583

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #257e8f;
/* rgb */ color: rgb(37, 126, 143);
/* oklch */ color: oklch(54.9% 0.085 213.3);

Tailwind

colors: {
  custom: {
    50: '#70a3af',
    500: '#257e8f',
    950: '#000000',
  },
}

SCSS

$custom: #257e8f;
$custom-light: #70a3af;
$custom-dark: #000000;

JSON

{
  "hex": "#257e8f",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 143
  },
  "hsl": {
    "h": 189.623,
    "s": 58.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.54937,
    "c": 0.08468,
    "h": 213.3
  },
  "luminance": 0.17298
}

Semantic roles & 50–950 ramp

primary

#257E8F

secondary

#B96757

accent

#5F46E2

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#090F10

muted

#7B7F7F

Preview Lab

Preview with #257E8F

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

Preview Lab → · Contrast checker → · Palette generator →