#287DC5#287DC5

#287DC5 is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 57.5% C 0.136 H 248.6°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#287DC5
RGB	rgb(40, 125, 197)
HSL	hsl(208, 66%, 46%)
HSV	hsv(208, 80%, 77%)
CMYK	cmyk(79.7%, 36.5%, 0%, 22.7%)
CIE-LAB	lab(50.86, 0.44, -44.53)
CIE-LCH	lch(50.86, 44.53, 270.57°)
OKLab	oklab(57.54% -0.0497 -0.1269)
OKLCH	oklch(57.54% 0.136 248.6)
XYZ	xyz(18.2829, 19.1473, 55.5447)
Luminance	0.1915 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287DC5 #C57028

analogous

#28C5BF #287DC5 #282EC5

triadic

#287DC5 #C5287D #7DC528

tetradic

#287DC5 #BF28C5 #C57028 #2EC528

square

#287DC5 #BF28C5 #C57028 #2EC528

split-complementary

#287DC5 #C5282E #C5BF28

monochromatic

#133C5F #1E5D92 #287DC5 #4F9BDB #82B8E6

Accessibility & contrast

On white

4.35

#287DC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#287DC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287DC5

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287DC5	#FFFFFF	#000000	##000000
##287DC5	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B81C8

Deuteranopia (green-blind)

#4473C4

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #287dc5;
/* rgb */ color: rgb(40, 125, 197);
/* oklch */ color: oklch(57.5% 0.136 248.6);

Tailwind

colors: {
  custom: {
    50: '#7aa2d7',
    500: '#287dc5',
    950: '#000000',
  },
}

SCSS

$custom: #287dc5;
$custom-light: #7aa2d7;
$custom-dark: #000000;

JSON

{
  "hex": "#287dc5",
  "rgb": {
    "r": 40,
    "g": 125,
    "b": 197
  },
  "hsl": {
    "h": 207.516,
    "s": 66.245,
    "l": 46.471
  },
  "oklch": {
    "l": 0.57539,
    "c": 0.13628,
    "h": 248.6
  },
  "luminance": 0.1915
}

Semantic roles & 50–950 ramp

primary

#287DC5

secondary

#CEA17A

accent

#8D3FE9

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #287DC5

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

Preview Lab → · Contrast checker → · Palette generator →