#587CCC#587CCC

#587CCC is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.7% C 0.129 H 264.5°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#587CCC
RGB	rgb(88, 124, 204)
HSL	hsl(221, 53%, 57%)
HSV	hsv(221, 57%, 80%)
CMYK	cmyk(56.9%, 39.2%, 0%, 20%)
CIE-LAB	lab(52.78, 11.11, -45.35)
CIE-LCH	lch(52.78, 46.69, 283.76°)
OKLab	oklab(59.67% -0.0123 -0.1287)
OKLCH	oklch(59.67% 0.129 264.5)
XYZ	xyz(22.1275, 20.8479, 59.9730)
Luminance	0.2085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587CCC #CCA858

analogous

#58B6CC #587CCC #6E58CC

triadic

#587CCC #CC587C #7CCC58

tetradic

#587CCC #CC58B6 #CCA858 #58CC6E

square

#587CCC #CC58B6 #CCA858 #58CC6E

split-complementary

#587CCC #CC6E58 #B6CC58

monochromatic

#284482 #365CB1 #587CCC #87A1DA #B6C6E9

Accessibility & contrast

On white

4.06

#587CCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#587CCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587CCC

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587CCC	#FFFFFF	#000000	##000000
##587CCC	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A84CF

Deuteranopia (green-blind)

#4C79CA

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #587ccc;
/* rgb */ color: rgb(88, 124, 204);
/* oklch */ color: oklch(59.7% 0.129 264.5);

Tailwind

colors: {
  custom: {
    50: '#90a1dc',
    500: '#587ccc',
    950: '#000000',
  },
}

SCSS

$custom: #587ccc;
$custom-light: #90a1dc;
$custom-dark: #000000;

JSON

{
  "hex": "#587ccc",
  "rgb": {
    "r": 88,
    "g": 124,
    "b": 204
  },
  "hsl": {
    "h": 221.379,
    "s": 53.211,
    "l": 57.255
  },
  "oklch": {
    "l": 0.59665,
    "c": 0.12925,
    "h": 264.5
  },
  "luminance": 0.2085
}

Semantic roles & 50–950 ramp

primary

#587CCC

secondary

#D7C9A8

accent

#AF4BDD

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #587CCC

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

Preview Lab → · Contrast checker → · Palette generator →