#3587D8#3587D8

#3587D8 is a mid, vivid cyan. Relative luminance 0.230; OKLCH L 61.3% C 0.146 H 251.3°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#3587D8
RGB	rgb(53, 135, 216)
HSL	hsl(210, 68%, 53%)
HSV	hsv(210, 75%, 85%)
CMYK	cmyk(75.5%, 37.5%, 0%, 15.3%)
CIE-LAB	lab(55.11, 2.88, -48.52)
CIE-LCH	lch(55.11, 48.61, 273.40°)
OKLab	oklab(61.3% -0.0469 -0.1383)
OKLCH	oklch(61.3% 0.146 251.3)
XYZ	xyz(22.5222, 23.0401, 68.2126)
Luminance	0.2304 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3587D8 #D88635

analogous

#35D8D8 #3587D8 #3535D8

triadic

#3587D8 #D83587 #87D835

tetradic

#3587D8 #D835D8 #D88635 #35D835

square

#3587D8 #D835D8 #D88635 #35D835

split-complementary

#3587D8 #D83535 #D8D835

monochromatic

#184A7B #2268AE #3587D8 #68A5E2 #9CC4EC

Accessibility & contrast

On white

3.74

#3587D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#3587D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3587D8

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3587D8	#FFFFFF	#000000	##000000
##3587D8	1.00	3.74	5.61	5.61
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#618CDB

Deuteranopia (green-blind)

#487DD6

Tritanopia (blue-blind)

#009AA5

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3587d8;
/* rgb */ color: rgb(53, 135, 216);
/* oklch */ color: oklch(61.3% 0.146 251.3);

Tailwind

colors: {
  custom: {
    50: '#82a9e4',
    500: '#3587d8',
    950: '#000000',
  },
}

SCSS

$custom: #3587d8;
$custom-light: #82a9e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3587d8",
  "rgb": {
    "r": 53,
    "g": 135,
    "b": 216
  },
  "hsl": {
    "h": 209.816,
    "s": 67.635,
    "l": 52.745
  },
  "oklch": {
    "l": 0.61298,
    "c": 0.14603,
    "h": 251.3
  },
  "luminance": 0.23043
}

Semantic roles & 50–950 ramp

primary

#3587D8

secondary

#D8B491

accent

#933DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C0F15

muted

#7D7F84

Preview Lab

Preview with #3587D8

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

Preview Lab → · Contrast checker → · Palette generator →