#6591DE#6591DE

#6591DE is a light, vivid blue. Relative luminance 0.283; OKLCH L 65.9% C 0.125 H 261.0°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#6591DE
RGB	rgb(101, 145, 222)
HSL	hsl(218, 65%, 63%)
HSV	hsv(218, 55%, 87%)
CMYK	cmyk(54.5%, 34.7%, 0%, 12.9%)
CIE-LAB	lab(60.15, 7.11, -43.79)
CIE-LCH	lch(60.15, 44.36, 279.22°)
OKLab	oklab(65.85% -0.0196 -0.1237)
OKLCH	oklch(65.85% 0.125 261)
XYZ	xyz(28.6725, 28.2892, 73.0425)
Luminance	0.2829 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6591DE #DEB265

analogous

#65CDDE #6591DE #7565DE

triadic

#6591DE #DE6591 #91DE65

tetradic

#6591DE #DE65CD #DEB265 #65DE75

square

#6591DE #DE65CD #DEB265 #65DE75

split-complementary

#6591DE #DE7565 #CDDE65

monochromatic

#2353A5 #336DD3 #6591DE #97B5E9 #CAD9F4

Accessibility & contrast

On white

3.15

#6591DE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.66

#6591DE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6591DE

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6591DE	#FFFFFF	#000000	##000000
##6591DE	1.00	3.15	6.66	6.66
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.66	21.00	1.00	1.00
##000000	6.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7297E1

Deuteranopia (green-blind)

#638CDC

Tritanopia (blue-blind)

#1BA2AD

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #6591de;
/* rgb */ color: rgb(101, 145, 222);
/* oklch */ color: oklch(65.9% 0.125 261.0);

Tailwind

colors: {
  custom: {
    50: '#99b0e8',
    500: '#6591de',
    950: '#000000',
  },
}

SCSS

$custom: #6591de;
$custom-light: #99b0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#6591de",
  "rgb": {
    "r": 101,
    "g": 145,
    "b": 222
  },
  "hsl": {
    "h": 218.182,
    "s": 64.706,
    "l": 63.333
  },
  "oklch": {
    "l": 0.65855,
    "c": 0.12522,
    "h": 261
  },
  "luminance": 0.28291
}

Semantic roles & 50–950 ramp

primary

#6591DE

secondary

#E5D5BA

accent

#8B19CD

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #6591DE

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

Preview Lab → · Contrast checker → · Palette generator →