#587ACE#587ACE

#587ACE is a mid, vivid blue. Relative luminance 0.204; OKLCH L 59.4% C 0.134 H 265.8°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#587ACE
RGB	rgb(88, 122, 206)
HSL	hsl(223, 55%, 58%)
HSV	hsv(223, 57%, 81%)
CMYK	cmyk(57.3%, 40.8%, 0%, 19.2%)
CIE-LAB	lab(52.34, 12.99, -47.19)
CIE-LCH	lch(52.34, 48.95, 285.39°)
OKLab	oklab(59.36% -0.0097 -0.1341)
OKLCH	oklch(59.36% 0.134 265.8)
XYZ	xyz(22.1208, 20.4482, 61.1618)
Luminance	0.2045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587ACE #CEAC58

analogous

#58B5CE #587ACE #7158CE

triadic

#587ACE #CE587A #7ACE58

tetradic

#587ACE #CE58B5 #CEAC58 #58CE71

square

#587ACE #CE58B5 #CEAC58 #58CE71

split-complementary

#587ACE #CE7158 #B5CE58

monochromatic

#274285 #3559B4 #587ACE #87A0DC #B7C5EA

Accessibility & contrast

On white

4.13

#587ACE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#587ACE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587ACE

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587ACE	#FFFFFF	#000000	##000000
##587ACE	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5683D1

Deuteranopia (green-blind)

#4778CC

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #587ace;
/* rgb */ color: rgb(88, 122, 206);
/* oklch */ color: oklch(59.4% 0.134 265.8);

Tailwind

colors: {
  custom: {
    50: '#90a0dd',
    500: '#587ace',
    950: '#000000',
  },
}

SCSS

$custom: #587ace;
$custom-light: #90a0dd;
$custom-dark: #000000;

JSON

{
  "hex": "#587ace",
  "rgb": {
    "r": 88,
    "g": 122,
    "b": 206
  },
  "hsl": {
    "h": 222.712,
    "s": 54.63,
    "l": 57.647
  },
  "oklch": {
    "l": 0.59358,
    "c": 0.13442,
    "h": 265.8
  },
  "luminance": 0.2045
}

Semantic roles & 50–950 ramp

primary

#587ACE

secondary

#D9CBA9

accent

#B34ADE

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #587ACE

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

Preview Lab → · Contrast checker → · Palette generator →