#6583FB#6583FB

#6583FB is a light, vivid blue. Relative luminance 0.260; OKLCH L 64.7% C 0.181 H 270.1°. Best body text is #000000 at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#6583FB
RGB	rgb(101, 131, 251)
HSL	hsl(228, 95%, 69%)
HSV	hsv(228, 60%, 98%)
CMYK	cmyk(59.8%, 47.8%, 0%, 1.6%)
CIE-LAB	lab(58.00, 24.80, -63.28)
CIE-LCH	lch(58.00, 67.96, 291.40°)
OKLab	oklab(64.71% 0.0004 -0.1809)
OKLCH	oklch(64.71% 0.181 270.1)
XYZ	xyz(30.8899, 25.9618, 94.6314)
Luminance	0.2596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6583FB #FBDD65

analogous

#65CEFB #6583FB #9265FB

triadic

#6583FB #FB6583 #83FB65

tetradic

#6583FB #FB65CE #FBDD65 #65FB92

square

#6583FB #FB65CE #FBDD65 #65FB92

split-complementary

#6583FB #FB9265 #CEFB65

monochromatic

#0631E0 #2953F9 #6583FB #A1B3FD #DCE3FE

Accessibility & contrast

On white

3.39

#6583FB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.19

#6583FB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583FB

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6583FB	#FFFFFF	#000000	##000000
##6583FB	1.00	3.39	6.19	6.19
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.19	21.00	1.00	1.00
##000000	6.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4692FF

Deuteranopia (green-blind)

#2A85F8

Tritanopia (blue-blind)

#009EB3

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #6583fb;
/* rgb */ color: rgb(101, 131, 251);
/* oklch */ color: oklch(64.7% 0.181 270.1);

Tailwind

colors: {
  custom: {
    50: '#9da6fd',
    500: '#6583fb',
    950: '#000000',
  },
}

SCSS

$custom: #6583fb;
$custom-light: #9da6fd;
$custom-dark: #000000;

JSON

{
  "hex": "#6583fb",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 251
  },
  "hsl": {
    "h": 228,
    "s": 94.937,
    "l": 69.02
  },
  "oklch": {
    "l": 0.6471,
    "c": 0.18093,
    "h": 270.1
  },
  "luminance": 0.25964
}

Semantic roles & 50–950 ramp

primary

#6583FB

secondary

#F4EBC8

accent

#B800E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F0F18

muted

#7F7F86

Preview Lab

Preview with #6583FB

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

Preview Lab → · Contrast checker → · Palette generator →