#287C9F#287C9F

#287C9F is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.2% C 0.095 H 230.1°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#287C9F
RGB	rgb(40, 124, 159)
HSL	hsl(198, 60%, 39%)
HSV	hsv(198, 75%, 62%)
CMYK	cmyk(74.8%, 22%, 0%, 37.6%)
CIE-LAB	lab(48.72, -12.80, -25.93)
CIE-LCH	lch(48.72, 28.91, 243.72°)
OKLab	oklab(55.24% -0.0608 -0.0728)
OKLCH	oklch(55.24% 0.095 230.1)
XYZ	xyz(14.3382, 17.3679, 35.3908)
Luminance	0.1737 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287C9F #9F4B28

analogous

#289F87 #287C9F #28419F

triadic

#287C9F #9F287C #7C9F28

tetradic

#287C9F #87289F #9F4B28 #419F28

square

#287C9F #87289F #9F4B28 #419F28

split-complementary

#287C9F #9F2841 #9F8728

monochromatic

#0F303D #1C566E #287C9F #37A1CD #68B8D9

Accessibility & contrast

On white

4.69

#287C9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#287C9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287C9F

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287C9F	#FFFFFF	#000000	##FFFFFF
##287C9F	1.00	4.69	4.47	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7AA1

Deuteranopia (green-blind)

#5A6F9F

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287c9f;
/* rgb */ color: rgb(40, 124, 159);
/* oklch */ color: oklch(55.2% 0.095 230.1);

Tailwind

colors: {
  custom: {
    50: '#73a2bb',
    500: '#287c9f',
    950: '#000000',
  },
}

SCSS

$custom: #287c9f;
$custom-light: #73a2bb;
$custom-dark: #000000;

JSON

{
  "hex": "#287c9f",
  "rgb": {
    "r": 40,
    "g": 124,
    "b": 159
  },
  "hsl": {
    "h": 197.647,
    "s": 59.799,
    "l": 39.02
  },
  "oklch": {
    "l": 0.55243,
    "c": 0.0949,
    "h": 230.1
  },
  "luminance": 0.1737
}

Semantic roles & 50–950 ramp

primary

#287C9F

secondary

#BF7F64

accent

#7345E3

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #287C9F

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

Preview Lab → · Contrast checker → · Palette generator →