#5781EE#5781EE

#5781EE is a light, vivid blue. Relative luminance 0.239; OKLCH L 62.7% C 0.170 H 265.8°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#5781EE
RGB	rgb(87, 129, 238)
HSL	hsl(223, 82%, 64%)
HSV	hsv(223, 63%, 93%)
CMYK	cmyk(63.4%, 45.8%, 0%, 6.7%)
CIE-LAB	lab(55.98, 19.25, -59.36)
CIE-LCH	lch(55.98, 62.40, 287.97°)
OKLab	oklab(62.73% -0.0123 -0.1697)
OKLCH	oklch(62.73% 0.17 265.8)
XYZ	xyz(27.2080, 23.8973, 84.0511)
Luminance	0.2390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5781EE #EEC457

analogous

#57CDEE #5781EE #7857EE

triadic

#5781EE #EE5781 #81EE57

tetradic

#5781EE #EE57CD #EEC457 #57EE78

square

#5781EE #EE57CD #EEC457 #57EE78

split-complementary

#5781EE #EE7857 #CDEE57

monochromatic

#1341B8 #1F57E8 #5781EE #8FABF4 #C6D4F9

Accessibility & contrast

On white

3.63

#5781EE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#5781EE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5781EE

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5781EE	#FFFFFF	#000000	##000000
##5781EE	1.00	3.63	5.78	5.78
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B8DF2

Deuteranopia (green-blind)

#3080EC

Tritanopia (blue-blind)

#009AAC

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #5781ee;
/* rgb */ color: rgb(87, 129, 238);
/* oklch */ color: oklch(62.7% 0.170 265.8);

Tailwind

colors: {
  custom: {
    50: '#94a5f4',
    500: '#5781ee',
    950: '#000000',
  },
}

SCSS

$custom: #5781ee;
$custom-light: #94a5f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5781ee",
  "rgb": {
    "r": 87,
    "g": 129,
    "b": 238
  },
  "hsl": {
    "h": 223.311,
    "s": 81.622,
    "l": 63.725
  },
  "oklch": {
    "l": 0.6273,
    "c": 0.17016,
    "h": 265.8
  },
  "luminance": 0.239
}

Semantic roles & 50–950 ramp

primary

#5781EE

secondary

#EBDCB6

accent

#A208DE

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5781EE

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

Preview Lab → · Contrast checker → · Palette generator →