#287C9E#287C9E

#287C9E is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.2% C 0.094 H 229.4°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#287C9E
RGB	rgb(40, 124, 158)
HSL	hsl(197, 60%, 39%)
HSV	hsv(197, 75%, 62%)
CMYK	cmyk(74.7%, 21.5%, 0%, 38%)
CIE-LAB	lab(48.68, -13.15, -25.41)
CIE-LCH	lch(48.68, 28.61, 242.64°)
OKLab	oklab(55.19% -0.0612 -0.0713)
OKLCH	oklch(55.19% 0.094 229.4)
XYZ	xyz(14.2518, 17.3334, 34.9357)
Luminance	0.1734 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287C9E #9E4A28

analogous

#289E85 #287C9E #28419E

triadic

#287C9E #9E287C #7C9E28

tetradic

#287C9E #85289E #9E4A28 #419E28

square

#287C9E #85289E #9E4A28 #419E28

split-complementary

#287C9E #9E2841 #9E8528

monochromatic

#0F2F3C #1C566D #287C9E #37A1CC #68B8D9

Accessibility & contrast

On white

4.70

#287C9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#287C9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287C9E

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287C9E	#FFFFFF	#000000	##FFFFFF
##287C9E	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7AA0

Deuteranopia (green-blind)

#5A6F9E

Tritanopia (blue-blind)

#008587

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287c9e;
/* rgb */ color: rgb(40, 124, 158);
/* oklch */ color: oklch(55.2% 0.094 229.4);

Tailwind

colors: {
  custom: {
    50: '#73a2ba',
    500: '#287c9e',
    950: '#000000',
  },
}

SCSS

$custom: #287c9e;
$custom-light: #73a2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#287c9e",
  "rgb": {
    "r": 40,
    "g": 124,
    "b": 158
  },
  "hsl": {
    "h": 197.288,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.55194,
    "c": 0.09401,
    "h": 229.4
  },
  "luminance": 0.17335
}

Semantic roles & 50–950 ramp

primary

#287C9E

secondary

#BF7D63

accent

#7245E3

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F11

muted

#7B7E80

Preview Lab

Preview with #287C9E

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

Preview Lab → · Contrast checker → · Palette generator →