#583CEE#583CEE

#583CEE is a mid, highly saturated blue. Relative luminance 0.115; OKLCH L 51.2% C 0.249 H 280.2°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#583CEE
RGB	rgb(88, 60, 238)
HSL	hsl(249, 84%, 58%)
HSV	hsv(249, 75%, 93%)
CMYK	cmyk(63%, 74.8%, 0%, 6.7%)
CIE-LAB	lab(40.37, 59.61, -84.75)
CIE-LCH	lch(40.37, 103.61, 305.12°)
OKLab	oklab(51.23% 0.0439 -0.2446)
OKLCH	oklch(51.23% 0.249 280.2)
XYZ	xyz(21.0681, 11.4778, 81.9776)
Luminance	0.1148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#583CEE #D2EE3C

analogous

#3C79EE #583CEE #B13CEE

triadic

#583CEE #EE583C #3CEE58

tetradic

#583CEE #EE3C79 #D2EE3C #3CEEB1

square

#583CEE #EE3C79 #D2EE3C #3CEEB1

split-complementary

#583CEE #EEB13C #79EE3C

monochromatic

#250EA2 #3213DA #583CEE #8874F3 #B8ADF8

Accessibility & contrast

On white

6.37

#583CEE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#583CEE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #583CEE

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##583CEE	#FFFFFF	#000000	##FFFFFF
##583CEE	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066F3

Deuteranopia (green-blind)

#0058EB

Tritanopia (blue-blind)

#007093

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #583cee;
/* rgb */ color: rgb(88, 60, 238);
/* oklch */ color: oklch(51.2% 0.249 280.2);

Tailwind

colors: {
  custom: {
    50: '#9976f5',
    500: '#583cee',
    950: '#000000',
  },
}

SCSS

$custom: #583cee;
$custom-light: #9976f5;
$custom-dark: #000000;

JSON

{
  "hex": "#583cee",
  "rgb": {
    "r": 88,
    "g": 60,
    "b": 238
  },
  "hsl": {
    "h": 249.438,
    "s": 83.962,
    "l": 58.431
  },
  "oklch": {
    "l": 0.51227,
    "c": 0.24852,
    "h": 280.2
  },
  "luminance": 0.11479
}

Semantic roles & 50–950 ramp

primary

#583CEE

secondary

#DBE6A0

accent

#FA2EDA

background

#FAF7FF

surface

#F4EDFF

border

#CEC8D7

text

#100917

muted

#7F7B85

Preview Lab

Preview with #583CEE

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

Preview Lab → · Contrast checker → · Palette generator →