#578CEE#578CEE

#578CEE is a light, vivid blue. Relative luminance 0.270; OKLCH L 65.0% C 0.157 H 261.6°. Best body text is #000000 at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#578CEE
RGB	rgb(87, 140, 238)
HSL	hsl(219, 82%, 64%)
HSV	hsv(219, 63%, 93%)
CMYK	cmyk(63.4%, 41.2%, 0%, 6.7%)
CIE-LAB	lab(58.93, 12.60, -54.65)
CIE-LCH	lch(58.93, 56.08, 282.99°)
OKLab	oklab(65% -0.0229 -0.1557)
OKLCH	oklch(65% 0.157 261.6)
XYZ	xyz(28.7357, 26.9528, 84.5604)
Luminance	0.2696 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578CEE #EEB957

analogous

#57D8EE #578CEE #6D57EE

triadic

#578CEE #EE578C #8CEE57

tetradic

#578CEE #EE57D8 #EEB957 #57EE6D

square

#578CEE #EE57D8 #EEB957 #57EE6D

split-complementary

#578CEE #EE6D57 #D8EE57

monochromatic

#134DB8 #1F66E8 #578CEE #8FB2F4 #C6D8F9

Accessibility & contrast

On white

3.29

#578CEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.39

#578CEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578CEE

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578CEE	#FFFFFF	#000000	##000000
##578CEE	1.00	3.29	6.39	6.39
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.39	21.00	1.00	1.00
##000000	6.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F95F2

Deuteranopia (green-blind)

#4987EC

Tritanopia (blue-blind)

#00A2B1

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #578cee;
/* rgb */ color: rgb(87, 140, 238);
/* oklch */ color: oklch(65.0% 0.157 261.6);

Tailwind

colors: {
  custom: {
    50: '#94adf4',
    500: '#578cee',
    950: '#000000',
  },
}

SCSS

$custom: #578cee;
$custom-light: #94adf4;
$custom-dark: #000000;

JSON

{
  "hex": "#578cee",
  "rgb": {
    "r": 87,
    "g": 140,
    "b": 238
  },
  "hsl": {
    "h": 218.94,
    "s": 81.622,
    "l": 63.725
  },
  "oklch": {
    "l": 0.64995,
    "c": 0.15741,
    "h": 261.6
  },
  "luminance": 0.26955
}

Semantic roles & 50–950 ramp

primary

#578CEE

secondary

#EBD8B6

accent

#9308DE

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578CEE

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

Preview Lab → · Contrast checker → · Palette generator →