#287E99#287E99

#287E99 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.5% C 0.089 H 223.1°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#287E99
RGB	rgb(40, 126, 153)
HSL	hsl(194, 59%, 38%)
HSV	hsv(194, 74%, 60%)
CMYK	cmyk(73.9%, 17.6%, 0%, 40%)
CIE-LAB	lab(49.09, -16.00, -21.84)
CIE-LCH	lch(49.09, 27.07, 233.77°)
OKLab	oklab(55.46% -0.0652 -0.0611)
OKLCH	oklch(55.46% 0.089 223.1)
XYZ	xyz(14.0833, 17.6711, 32.7994)
Luminance	0.1767 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287E99 #994328

analogous

#28997B #287E99 #284699

triadic

#287E99 #99287E #7E9928

tetradic

#287E99 #7B2899 #994328 #469928

square

#287E99 #7B2899 #994328 #469928

split-complementary

#287E99 #992846 #997B28

monochromatic

#0F2E38 #1B5668 #287E99 #35A6CA #65BBD7

Accessibility & contrast

On white

4.63

#287E99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#287E99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #287E99

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287E99	#FFFFFF	#000000	##FFFFFF
##287E99	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7B9A

Deuteranopia (green-blind)

#5F7099

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #287e99;
/* rgb */ color: rgb(40, 126, 153);
/* oklch */ color: oklch(55.5% 0.089 223.1);

Tailwind

colors: {
  custom: {
    50: '#72a3b7',
    500: '#287e99',
    950: '#000000',
  },
}

SCSS

$custom: #287e99;
$custom-light: #72a3b7;
$custom-dark: #000000;

JSON

{
  "hex": "#287e99",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 153
  },
  "hsl": {
    "h": 194.336,
    "s": 58.549,
    "l": 37.843
  },
  "oklch": {
    "l": 0.55459,
    "c": 0.08938,
    "h": 223.1
  },
  "luminance": 0.17673
}

Semantic roles & 50–950 ramp

primary

#287E99

secondary

#BD7660

accent

#6B46E2

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #287E99

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

Preview Lab → · Contrast checker → · Palette generator →