#6583F3#6583F3

#6583F3 is a light, vivid blue. Relative luminance 0.255; OKLCH L 64.2% C 0.170 H 269.8°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#6583F3
RGB	rgb(101, 131, 243)
HSL	hsl(227, 86%, 67%)
HSV	hsv(227, 58%, 95%)
CMYK	cmyk(58.4%, 46.1%, 0%, 4.7%)
CIE-LAB	lab(57.53, 22.19, -59.61)
CIE-LCH	lch(57.53, 63.61, 290.42°)
OKLab	oklab(64.2% -0.0006 -0.1702)
OKLCH	oklch(64.2% 0.17 269.8)
XYZ	xyz(29.6554, 25.4680, 88.1297)
Luminance	0.2547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6583F3 #F3D565

analogous

#65CAF3 #6583F3 #8E65F3

triadic

#6583F3 #F36583 #83F365

tetradic

#6583F3 #F365CA #F3D565 #65F38E

square

#6583F3 #F365CA #F3D565 #65F38E

split-complementary

#6583F3 #F38E65 #CAF365

monochromatic

#1038CE #2C55EF #6583F3 #9EB1F7 #D7DEFC

Accessibility & contrast

On white

3.45

#6583F3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.09

#6583F3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583F3

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6583F3	#FFFFFF	#000000	##000000
##6583F3	1.00	3.45	6.09	6.09
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.09	21.00	1.00	1.00
##000000	6.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D91F7

Deuteranopia (green-blind)

#3784F1

Tritanopia (blue-blind)

#009CAF

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #6583f3;
/* rgb */ color: rgb(101, 131, 243);
/* oklch */ color: oklch(64.2% 0.170 269.8);

Tailwind

colors: {
  custom: {
    50: '#9ca6f8',
    500: '#6583f3',
    950: '#000000',
  },
}

SCSS

$custom: #6583f3;
$custom-light: #9ca6f8;
$custom-dark: #000000;

JSON

{
  "hex": "#6583f3",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 243
  },
  "hsl": {
    "h": 227.324,
    "s": 85.542,
    "l": 67.451
  },
  "oklch": {
    "l": 0.64198,
    "c": 0.17017,
    "h": 269.8
  },
  "luminance": 0.2547
}

Semantic roles & 50–950 ramp

primary

#6583F3

secondary

#F0E7C4

accent

#B303E2

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #6583F3

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

Preview Lab → · Contrast checker → · Palette generator →