#5781EC#5781EC

#5781EC is a light, vivid blue. Relative luminance 0.238; OKLCH L 62.6% C 0.167 H 265.7°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#5781EC
RGB	rgb(87, 129, 236)
HSL	hsl(223, 80%, 63%)
HSV	hsv(223, 63%, 93%)
CMYK	cmyk(63.1%, 45.3%, 0%, 7.5%)
CIE-LAB	lab(55.87, 18.57, -58.43)
CIE-LCH	lch(55.87, 61.31, 287.63°)
OKLab	oklab(62.6% -0.0126 -0.167)
OKLCH	oklch(62.6% 0.167 265.7)
XYZ	xyz(26.9158, 23.7804, 82.5123)
Luminance	0.2378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5781EC #ECC257

analogous

#57CCEC #5781EC #7757EC

triadic

#5781EC #EC5781 #81EC57

tetradic

#5781EC #EC57CC #ECC257 #57EC77

square

#5781EC #EC57CC #ECC257 #57EC77

split-complementary

#5781EC #EC7757 #CCEC57

monochromatic

#1441B4 #2058E6 #5781EC #8EAAF2 #C5D3F8

Accessibility & contrast

On white

3.65

#5781EC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#5781EC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5781EC

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5781EC	#FFFFFF	#000000	##000000
##5781EC	1.00	3.65	5.76	5.76
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D8DF0

Deuteranopia (green-blind)

#3380EA

Tritanopia (blue-blind)

#0099AB

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #5781ec;
/* rgb */ color: rgb(87, 129, 236);
/* oklch */ color: oklch(62.6% 0.167 265.7);

Tailwind

colors: {
  custom: {
    50: '#94a5f3',
    500: '#5781ec',
    950: '#000000',
  },
}

SCSS

$custom: #5781ec;
$custom-light: #94a5f3;
$custom-dark: #000000;

JSON

{
  "hex": "#5781ec",
  "rgb": {
    "r": 87,
    "g": 129,
    "b": 236
  },
  "hsl": {
    "h": 223.087,
    "s": 79.679,
    "l": 63.333
  },
  "oklch": {
    "l": 0.62602,
    "c": 0.16747,
    "h": 265.7
  },
  "luminance": 0.23783
}

Semantic roles & 50–950 ramp

primary

#5781EC

secondary

#EADBB5

accent

#A10ADC

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5781EC

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

Preview Lab → · Contrast checker → · Palette generator →