#5783CC#5783CC

#5783CC is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.1% C 0.122 H 260.1°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#5783CC
RGB	rgb(87, 131, 204)
HSL	hsl(217, 53%, 57%)
HSV	hsv(217, 57%, 80%)
CMYK	cmyk(57.4%, 35.8%, 0%, 20%)
CIE-LAB	lab(54.68, 6.68, -42.36)
CIE-LCH	lch(54.68, 42.89, 278.96°)
OKLab	oklab(61.12% -0.021 -0.1199)
OKLCH	oklch(61.12% 0.122 260.1)
XYZ	xyz(22.9421, 22.6166, 60.2715)
Luminance	0.2262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5783CC #CCA057

analogous

#57BECC #5783CC #6657CC

triadic

#5783CC #CC5783 #83CC57

tetradic

#5783CC #CC57BE #CCA057 #57CC66

square

#5783CC #CC57BE #CCA057 #57CC66

split-complementary

#5783CC #CC6657 #BECC57

monochromatic

#274981 #3664B0 #5783CC #86A6DA #B5C8E9

Accessibility & contrast

On white

3.80

#5783CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#5783CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5783CC

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5783CC	#FFFFFF	#000000	##000000
##5783CC	1.00	3.80	5.52	5.52
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6589CF

Deuteranopia (green-blind)

#567ECA

Tritanopia (blue-blind)

#00939E

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #5783cc;
/* rgb */ color: rgb(87, 131, 204);
/* oklch */ color: oklch(61.1% 0.122 260.1);

Tailwind

colors: {
  custom: {
    50: '#8fa6dc',
    500: '#5783cc',
    950: '#000000',
  },
}

SCSS

$custom: #5783cc;
$custom-light: #8fa6dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5783cc",
  "rgb": {
    "r": 87,
    "g": 131,
    "b": 204
  },
  "hsl": {
    "h": 217.436,
    "s": 53.425,
    "l": 57.059
  },
  "oklch": {
    "l": 0.61118,
    "c": 0.1217,
    "h": 260.1
  },
  "luminance": 0.22618
}

Semantic roles & 50–950 ramp

primary

#5783CC

secondary

#D7C5A8

accent

#A64BDD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5783CC

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

Preview Lab → · Contrast checker → · Palette generator →