#287EA4#287EA4

#287EA4 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.0% C 0.099 H 231.8°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#287EA4
RGB	rgb(40, 126, 164)
HSL	hsl(198, 61%, 40%)
HSV	hsv(198, 76%, 64%)
CMYK	cmyk(75.6%, 23.2%, 0%, 35.7%)
CIE-LAB	lab(49.56, -12.17, -27.54)
CIE-LCH	lch(49.56, 30.11, 246.15°)
OKLab	oklab(55.98% -0.061 -0.0775)
OKLCH	oklch(55.98% 0.099 231.8)
XYZ	xyz(15.0341, 18.0514, 37.8067)
Luminance	0.1805 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287EA4 #A44E28

analogous

#28A48C #287EA4 #2840A4

triadic

#287EA4 #A4287E #7EA428

tetradic

#287EA4 #8C28A4 #A44E28 #40A428

square

#287EA4 #8C28A4 #A44E28 #40A428

split-complementary

#287EA4 #A42840 #A48C28

monochromatic

#103242 #1C5873 #287EA4 #3AA1CF #6BB9DB

Accessibility & contrast

On white

4.55

#287EA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#287EA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287EA4

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287EA4	#FFFFFF	#000000	##000000
##287EA4	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7CA6

Deuteranopia (green-blind)

#5A71A3

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #287ea4;
/* rgb */ color: rgb(40, 126, 164);
/* oklch */ color: oklch(56.0% 0.099 231.8);

Tailwind

colors: {
  custom: {
    50: '#74a3bf',
    500: '#287ea4',
    950: '#000000',
  },
}

SCSS

$custom: #287ea4;
$custom-light: #74a3bf;
$custom-dark: #000000;

JSON

{
  "hex": "#287ea4",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 164
  },
  "hsl": {
    "h": 198.387,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.55983,
    "c": 0.09861,
    "h": 231.8
  },
  "luminance": 0.18053
}

Semantic roles & 50–950 ramp

primary

#287EA4

secondary

#C18266

accent

#7544E4

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #287EA4

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

Preview Lab → · Contrast checker → · Palette generator →