#6583DF#6583DF

#6583DF is a light, vivid blue. Relative luminance 0.243; OKLCH L 63.0% C 0.143 H 268.5°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#6583DF
RGB	rgb(101, 131, 223)
HSL	hsl(225, 66%, 64%)
HSV	hsv(225, 55%, 87%)
CMYK	cmyk(54.7%, 41.3%, 0%, 12.5%)
CIE-LAB	lab(56.41, 15.74, -50.26)
CIE-LCH	lch(56.41, 52.67, 287.39°)
OKLab	oklab(62.98% -0.0038 -0.1427)
OKLCH	oklch(62.98% 0.143 268.5)
XYZ	xyz(26.7980, 24.3250, 73.0808)
Luminance	0.2433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6583DF #DFC165

analogous

#65C0DF #6583DF #8465DF

triadic

#6583DF #DF6583 #83DF65

tetradic

#6583DF #DF65C0 #DFC165 #65DF84

square

#6583DF #DF65C0 #DFC165 #65DF84

split-complementary

#6583DF #DF8465 #C0DF65

monochromatic

#2343A7 #325AD4 #6583DF #98ACEA #CAD5F4

Accessibility & contrast

On white

3.58

#6583DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#6583DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583DF

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6583DF	#FFFFFF	#000000	##000000
##6583DF	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C8DE3

Deuteranopia (green-blind)

#4D82DD

Tritanopia (blue-blind)

#1F97A6

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #6583df;
/* rgb */ color: rgb(101, 131, 223);
/* oklch */ color: oklch(63.0% 0.143 268.5);

Tailwind

colors: {
  custom: {
    50: '#99a6e9',
    500: '#6583df',
    950: '#000000',
  },
}

SCSS

$custom: #6583df;
$custom-light: #99a6e9;
$custom-dark: #000000;

JSON

{
  "hex": "#6583df",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 223
  },
  "hsl": {
    "h": 225.246,
    "s": 65.591,
    "l": 63.529
  },
  "oklch": {
    "l": 0.62982,
    "c": 0.14277,
    "h": 268.5
  },
  "luminance": 0.24327
}

Semantic roles & 50–950 ramp

primary

#6583DF

secondary

#E6DBBA

accent

#A118CD

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F0F16

muted

#7E7F84

Preview Lab

Preview with #6583DF

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

Preview Lab → · Contrast checker → · Palette generator →