#6583DC#6583DC

#6583DC is a light, vivid blue. Relative luminance 0.242; OKLCH L 62.8% C 0.139 H 268.2°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#6583DC
RGB	rgb(101, 131, 220)
HSL	hsl(225, 63%, 63%)
HSV	hsv(225, 54%, 86%)
CMYK	cmyk(54.1%, 40.5%, 0%, 13.7%)
CIE-LAB	lab(56.25, 14.79, -48.83)
CIE-LCH	lch(56.25, 51.02, 286.85°)
OKLab	oklab(62.81% -0.0043 -0.1385)
OKLCH	oklch(62.81% 0.139 268.2)
XYZ	xyz(26.3971, 24.1647, 70.9695)
Luminance	0.2417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6583DC #DCBE65

analogous

#65BEDC #6583DC #8265DC

triadic

#6583DC #DC6583 #83DC65

tetradic

#6583DC #DC65BE #DCBE65 #65DC82

square

#6583DC #DC65BE #DCBE65 #65DC82

split-complementary

#6583DC #DC8265 #BEDC65

monochromatic

#2544A2 #335BD1 #6583DC #97ABE7 #C9D3F3

Accessibility & contrast

On white

3.60

#6583DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#6583DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583DC

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6583DC	#FFFFFF	#000000	##000000
##6583DC	1.00	3.60	5.83	5.83
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.83	21.00	1.00	1.00
##000000	5.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E8DDF

Deuteranopia (green-blind)

#5082DA

Tritanopia (blue-blind)

#2496A5

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #6583dc;
/* rgb */ color: rgb(101, 131, 220);
/* oklch */ color: oklch(62.8% 0.139 268.2);

Tailwind

colors: {
  custom: {
    50: '#99a6e7',
    500: '#6583dc',
    950: '#000000',
  },
}

SCSS

$custom: #6583dc;
$custom-light: #99a6e7;
$custom-dark: #000000;

JSON

{
  "hex": "#6583dc",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 220
  },
  "hsl": {
    "h": 224.874,
    "s": 62.963,
    "l": 62.941
  },
  "oklch": {
    "l": 0.62807,
    "c": 0.13861,
    "h": 268.2
  },
  "luminance": 0.24167
}

Semantic roles & 50–950 ramp

primary

#6583DC

secondary

#E4D9B9

accent

#9E1BCB

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #6583DC

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

Preview Lab → · Contrast checker → · Palette generator →