#5783FF#5783FF

#5783FF is a light, vivid blue. Relative luminance 0.255; OKLCH L 64.2% C 0.190 H 266.4°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#5783FF
RGB	rgb(87, 131, 255)
HSL	hsl(224, 100%, 67%)
HSV	hsv(224, 66%, 100%)
CMYK	cmyk(65.9%, 48.6%, 0%, 0%)
CIE-LAB	lab(57.54, 23.81, -66.26)
CIE-LCH	lch(57.54, 70.41, 289.76°)
OKLab	oklab(64.24% -0.0119 -0.19)
OKLCH	oklch(64.24% 0.19 266.4)
XYZ	xyz(30.0905, 25.4759, 97.9199)
Luminance	0.2548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5783FF #FFD357

analogous

#57D7FF #5783FF #7F57FF

triadic

#5783FF #FF5783 #83FF57

tetradic

#5783FF #FF57D7 #FFD357 #57FF7F

square

#5783FF #FF57D7 #FFD357 #57FF7F

split-complementary

#5783FF #FF7F57 #D7FF57

monochromatic

#003ADC #1A56FF #5783FF #94B0FF #D1DDFF

Accessibility & contrast

On white

3.44

#5783FF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#5783FF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5783FF

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5783FF	#FFFFFF	#000000	##000000
##5783FF	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E92FF

Deuteranopia (green-blind)

#0883FC

Tritanopia (blue-blind)

#00A0B5

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #5783ff;
/* rgb */ color: rgb(87, 131, 255);
/* oklch */ color: oklch(64.2% 0.190 266.4);

Tailwind

colors: {
  custom: {
    50: '#97a6ff',
    500: '#5783ff',
    950: '#000000',
  },
}

SCSS

$custom: #5783ff;
$custom-light: #97a6ff;
$custom-dark: #000000;

JSON

{
  "hex": "#5783ff",
  "rgb": {
    "r": 87,
    "g": 131,
    "b": 255
  },
  "hsl": {
    "h": 224.286,
    "s": 100,
    "l": 67.059
  },
  "oklch": {
    "l": 0.64244,
    "c": 0.19037,
    "h": 266.4
  },
  "luminance": 0.25479
}

Semantic roles & 50–950 ramp

primary

#5783FF

secondary

#F4E6BE

accent

#A900E6

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F0F18

muted

#7F7F86

Preview Lab

Preview with #5783FF

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

Preview Lab → · Contrast checker → · Palette generator →