#6583FC#6583FC

#6583FC is a light, vivid blue. Relative luminance 0.260; OKLCH L 64.8% C 0.182 H 270.2°. Best body text is #000000 at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#6583FC
RGB	rgb(101, 131, 252)
HSL	hsl(228, 96%, 69%)
HSV	hsv(228, 60%, 99%)
CMYK	cmyk(59.9%, 48%, 0%, 1.2%)
CIE-LAB	lab(58.06, 25.12, -63.73)
CIE-LCH	lch(58.06, 68.50, 291.52°)
OKLab	oklab(64.78% 0.0006 -0.1823)
OKLCH	oklch(64.78% 0.182 270.2)
XYZ	xyz(31.0479, 26.0250, 95.4638)
Luminance	0.2603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6583FC #FCDE65

analogous

#65CFFC #6583FC #9365FC

triadic

#6583FC #FC6583 #83FC65

tetradic

#6583FC #FC65CF #FCDE65 #65FC93

square

#6583FC #FC65CF #FCDE65 #65FC93

split-complementary

#6583FC #FC9365 #CFFC65

monochromatic

#0430E2 #2953FB #6583FC #A1B3FD #DDE4FE

Accessibility & contrast

On white

3.38

#6583FC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.21

#6583FC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583FC

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6583FC	#FFFFFF	#000000	##000000
##6583FC	1.00	3.38	6.21	6.21
#FFFFFF	3.38	1.00	21.00	21.00
#000000	6.21	21.00	1.00	1.00
##000000	6.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4593FF

Deuteranopia (green-blind)

#2885F9

Tritanopia (blue-blind)

#009FB3

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #6583fc;
/* rgb */ color: rgb(101, 131, 252);
/* oklch */ color: oklch(64.8% 0.182 270.2);

Tailwind

colors: {
  custom: {
    50: '#9da6fe',
    500: '#6583fc',
    950: '#000000',
  },
}

SCSS

$custom: #6583fc;
$custom-light: #9da6fe;
$custom-dark: #000000;

JSON

{
  "hex": "#6583fc",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 252
  },
  "hsl": {
    "h": 228.079,
    "s": 96.178,
    "l": 69.216
  },
  "oklch": {
    "l": 0.64775,
    "c": 0.18227,
    "h": 270.2
  },
  "luminance": 0.26028
}

Semantic roles & 50–950 ramp

primary

#6583FC

secondary

#F4ECC8

accent

#B800E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F0F18

muted

#7F7F86

Preview Lab

Preview with #6583FC

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

Preview Lab → · Contrast checker → · Palette generator →