#587DD9#587DD9

#587DD9 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.6% C 0.146 H 265.7°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#587DD9
RGB	rgb(88, 125, 217)
HSL	hsl(223, 63%, 60%)
HSV	hsv(223, 59%, 85%)
CMYK	cmyk(59.4%, 42.4%, 0%, 14.9%)
CIE-LAB	lab(53.76, 14.80, -51.16)
CIE-LCH	lch(53.76, 53.25, 286.14°)
OKLab	oklab(60.65% -0.0109 -0.1456)
OKLCH	oklch(60.65% 0.146 265.7)
XYZ	xyz(23.8782, 21.7497, 68.5720)
Luminance	0.2175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587DD9 #D9B458

analogous

#58BDD9 #587DD9 #7458D9

triadic

#587DD9 #D9587D #7DD958

tetradic

#587DD9 #D958BD #D9B458 #58D974

square

#587DD9 #D958BD #D9B458 #58D974

split-complementary

#587DD9 #D97458 #BDD958

monochromatic

#224395 #2D59C7 #587DD9 #8AA4E4 #BCCBF0

Accessibility & contrast

On white

3.92

#587DD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#587DD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587DD9

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587DD9	#FFFFFF	#000000	##000000
##587DD9	1.00	3.92	5.35	5.35
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5487DD

Deuteranopia (green-blind)

#427BD7

Tritanopia (blue-blind)

#0092A0

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #587dd9;
/* rgb */ color: rgb(88, 125, 217);
/* oklch */ color: oklch(60.6% 0.146 265.7);

Tailwind

colors: {
  custom: {
    50: '#91a2e5',
    500: '#587dd9',
    950: '#000000',
  },
}

SCSS

$custom: #587dd9;
$custom-light: #91a2e5;
$custom-dark: #000000;

JSON

{
  "hex": "#587dd9",
  "rgb": {
    "r": 88,
    "g": 125,
    "b": 217
  },
  "hsl": {
    "h": 222.791,
    "s": 62.927,
    "l": 59.804
  },
  "oklch": {
    "l": 0.60648,
    "c": 0.14605,
    "h": 265.7
  },
  "luminance": 0.21752
}

Semantic roles & 50–950 ramp

primary

#587DD9

secondary

#DFD1AD

accent

#B742E6

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #587DD9

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

Preview Lab → · Contrast checker → · Palette generator →