#257E99#257E99

#257E99 is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.4% C 0.091 H 222.7°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#257E99
RGB	rgb(37, 126, 153)
HSL	hsl(194, 61%, 37%)
HSV	hsv(194, 76%, 60%)
CMYK	cmyk(75.8%, 17.6%, 0%, 40%)
CIE-LAB	lab(49.02, -16.40, -21.95)
CIE-LCH	lch(49.02, 27.40, 233.24°)
OKLab	oklab(55.38% -0.0666 -0.0614)
OKLCH	oklch(55.38% 0.091 222.7)
XYZ	xyz(13.9712, 17.6133, 32.7942)
Luminance	0.1762 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257E99 #994025

analogous

#25997A #257E99 #254499

triadic

#257E99 #99257E #7E9925

tetradic

#257E99 #7A2599 #994025 #449925

square

#257E99 #7A2599 #994025 #449925

split-complementary

#257E99 #992544 #997A25

monochromatic

#0D2D36 #195568 #257E99 #31A7CA #60BCD9

Accessibility & contrast

On white

4.64

#257E99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#257E99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #257E99

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257E99	#FFFFFF	#000000	##FFFFFF
##257E99	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7B9A

Deuteranopia (green-blind)

#5F7099

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #257e99;
/* rgb */ color: rgb(37, 126, 153);
/* oklch */ color: oklch(55.4% 0.091 222.7);

Tailwind

colors: {
  custom: {
    50: '#71a3b7',
    500: '#257e99',
    950: '#000000',
  },
}

SCSS

$custom: #257e99;
$custom-light: #71a3b7;
$custom-dark: #000000;

JSON

{
  "hex": "#257e99",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 153
  },
  "hsl": {
    "h": 193.966,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.55382,
    "c": 0.09065,
    "h": 222.7
  },
  "luminance": 0.17615
}

Semantic roles & 50–950 ramp

primary

#257E99

secondary

#BE735C

accent

#6944E4

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #257E99

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

Preview Lab → · Contrast checker → · Palette generator →