#287AC5#287AC5

#287AC5 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.8% C 0.139 H 250.2°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#287AC5
RGB	rgb(40, 122, 197)
HSL	hsl(209, 66%, 46%)
HSV	hsv(209, 80%, 77%)
CMYK	cmyk(79.7%, 38.1%, 0%, 22.7%)
CIE-LAB	lab(49.98, 2.26, -45.93)
CIE-LCH	lch(49.98, 45.99, 272.82°)
OKLab	oklab(56.85% -0.0471 -0.1311)
OKLCH	oklch(56.85% 0.139 250.2)
XYZ	xyz(17.9088, 18.3992, 55.4200)
Luminance	0.1840 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287AC5 #C57328

analogous

#28C5C2 #287AC5 #282CC5

triadic

#287AC5 #C5287A #7AC528

tetradic

#287AC5 #C228C5 #C57328 #2CC528

square

#287AC5 #C228C5 #C57328 #2CC528

split-complementary

#287AC5 #C5282C #C5C228

monochromatic

#133B5F #1E5A92 #287AC5 #4F98DB #82B6E6

Accessibility & contrast

On white

4.49

#287AC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#287AC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287AC5

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287AC5	#FFFFFF	#000000	##000000
##287AC5	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#567FC8

Deuteranopia (green-blind)

#3E70C4

Tritanopia (blue-blind)

#008C96

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #287ac5;
/* rgb */ color: rgb(40, 122, 197);
/* oklch */ color: oklch(56.8% 0.139 250.2);

Tailwind

colors: {
  custom: {
    50: '#7aa0d7',
    500: '#287ac5',
    950: '#000000',
  },
}

SCSS

$custom: #287ac5;
$custom-light: #7aa0d7;
$custom-dark: #000000;

JSON

{
  "hex": "#287ac5",
  "rgb": {
    "r": 40,
    "g": 122,
    "b": 197
  },
  "hsl": {
    "h": 208.662,
    "s": 66.245,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56847,
    "c": 0.13926,
    "h": 250.2
  },
  "luminance": 0.18401
}

Semantic roles & 50–950 ramp

primary

#287AC5

secondary

#CEA37A

accent

#903FE9

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #287AC5

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

Preview Lab → · Contrast checker → · Palette generator →