#587CEF#587CEF

#587CEF is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.8% C 0.177 H 267.9°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#587CEF
RGB	rgb(88, 124, 239)
HSL	hsl(226, 83%, 64%)
HSV	hsv(226, 63%, 94%)
CMYK	cmyk(63.2%, 48.1%, 0%, 6.3%)
CIE-LAB	lab(54.78, 22.80, -61.84)
CIE-LCH	lch(54.78, 65.91, 290.24°)
OKLab	oklab(61.85% -0.0066 -0.1771)
OKLCH	oklch(61.85% 0.177 267.9)
XYZ	xyz(26.8068, 22.7196, 84.6172)
Luminance	0.2272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587CEF #EFCB58

analogous

#58C8EF #587CEF #8058EF

triadic

#587CEF #EF587C #7CEF58

tetradic

#587CEF #EF58C8 #EFCB58 #58EF80

square

#587CEF #EF58C8 #EFCB58 #58EF80

split-complementary

#587CEF #EF8058 #C8EF58

monochromatic

#123ABB #2050EA #587CEF #90A8F4 #C8D4FA

Accessibility & contrast

On white

3.79

#587CEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#587CEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587CEF

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587CEF	#FFFFFF	#000000	##000000
##587CEF	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F8AF3

Deuteranopia (green-blind)

#1D7DED

Tritanopia (blue-blind)

#0097AA

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #587cef;
/* rgb */ color: rgb(88, 124, 239);
/* oklch */ color: oklch(61.8% 0.177 267.9);

Tailwind

colors: {
  custom: {
    50: '#95a1f5',
    500: '#587cef',
    950: '#000000',
  },
}

SCSS

$custom: #587cef;
$custom-light: #95a1f5;
$custom-dark: #000000;

JSON

{
  "hex": "#587cef",
  "rgb": {
    "r": 88,
    "g": 124,
    "b": 239
  },
  "hsl": {
    "h": 225.695,
    "s": 82.514,
    "l": 64.118
  },
  "oklch": {
    "l": 0.61845,
    "c": 0.17718,
    "h": 267.9
  },
  "luminance": 0.22722
}

Semantic roles & 50–950 ramp

primary

#587CEF

secondary

#ECDFB7

accent

#AB07DF

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #587CEF

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

Preview Lab → · Contrast checker → · Palette generator →