#287AC4#287AC4

#287AC4 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.8% C 0.138 H 250.0°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#287AC4
RGB	rgb(40, 122, 196)
HSL	hsl(208, 66%, 46%)
HSV	hsv(208, 80%, 77%)
CMYK	cmyk(79.6%, 37.8%, 0%, 23.1%)
CIE-LAB	lab(49.92, 1.89, -45.45)
CIE-LCH	lch(49.92, 45.49, 272.38°)
OKLab	oklab(56.79% -0.0473 -0.1296)
OKLCH	oklch(56.79% 0.138 250)
XYZ	xyz(17.7946, 18.3536, 54.8186)
Luminance	0.1836 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287AC4 #C47228

analogous

#28C4C0 #287AC4 #282CC4

triadic

#287AC4 #C4287A #7AC428

tetradic

#287AC4 #C028C4 #C47228 #2CC428

square

#287AC4 #C028C4 #C47228 #2CC428

split-complementary

#287AC4 #C4282C #C4C028

monochromatic

#133B5E #1E5A91 #287AC4 #4E98DB #81B6E5

Accessibility & contrast

On white

4.50

#287AC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#287AC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287AC4

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287AC4	#FFFFFF	#000000	##000000
##287AC4	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#577EC7

Deuteranopia (green-blind)

#3F70C3

Tritanopia (blue-blind)

#008C95

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #287ac4;
/* rgb */ color: rgb(40, 122, 196);
/* oklch */ color: oklch(56.8% 0.138 250.0);

Tailwind

colors: {
  custom: {
    50: '#7aa0d6',
    500: '#287ac4',
    950: '#000000',
  },
}

SCSS

$custom: #287ac4;
$custom-light: #7aa0d6;
$custom-dark: #000000;

JSON

{
  "hex": "#287ac4",
  "rgb": {
    "r": 40,
    "g": 122,
    "b": 196
  },
  "hsl": {
    "h": 208.462,
    "s": 66.102,
    "l": 46.275
  },
  "oklch": {
    "l": 0.56786,
    "c": 0.13801,
    "h": 250
  },
  "luminance": 0.18356
}

Semantic roles & 50–950 ramp

primary

#287AC4

secondary

#CEA27A

accent

#903FE9

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #287AC4

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

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