#6583F4#6583F4

#6583F4 is a light, vivid blue. Relative luminance 0.255; OKLCH L 64.3% C 0.172 H 269.9°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#6583F4
RGB	rgb(101, 131, 244)
HSL	hsl(227, 87%, 68%)
HSV	hsv(227, 59%, 96%)
CMYK	cmyk(58.6%, 46.3%, 0%, 4.3%)
CIE-LAB	lab(57.59, 22.52, -60.07)
CIE-LCH	lch(57.59, 64.16, 290.55°)
OKLab	oklab(64.26% -0.0004 -0.1715)
OKLCH	oklch(64.26% 0.172 269.9)
XYZ	xyz(29.8068, 25.5286, 88.9272)
Luminance	0.2553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6583F4 #F4D665

analogous

#65CAF4 #6583F4 #8F65F4

triadic

#6583F4 #F46583 #83F465

tetradic

#6583F4 #F465CA #F4D665 #65F48F

square

#6583F4 #F465CA #F4D665 #65F48F

split-complementary

#6583F4 #F48F65 #CAF465

monochromatic

#0F37D0 #2C55F0 #6583F4 #9EB1F8 #D7DFFC

Accessibility & contrast

On white

3.44

#6583F4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.11

#6583F4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583F4

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6583F4	#FFFFFF	#000000	##000000
##6583F4	1.00	3.44	6.11	6.11
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.11	21.00	1.00	1.00
##000000	6.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D91F8

Deuteranopia (green-blind)

#3684F2

Tritanopia (blue-blind)

#009CB0

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #6583f4;
/* rgb */ color: rgb(101, 131, 244);
/* oklch */ color: oklch(64.3% 0.172 269.9);

Tailwind

colors: {
  custom: {
    50: '#9ca6f8',
    500: '#6583f4',
    950: '#000000',
  },
}

SCSS

$custom: #6583f4;
$custom-light: #9ca6f8;
$custom-dark: #000000;

JSON

{
  "hex": "#6583f4",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 244
  },
  "hsl": {
    "h": 227.413,
    "s": 86.667,
    "l": 67.647
  },
  "oklch": {
    "l": 0.64261,
    "c": 0.17152,
    "h": 269.9
  },
  "luminance": 0.25531
}

Semantic roles & 50–950 ramp

primary

#6583F4

secondary

#F1E7C4

accent

#B402E3

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #6583F4

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

Preview Lab → · Contrast checker → · Palette generator →