#6491DD#6491DD

#6491DD is a light, vivid blue. Relative luminance 0.282; OKLCH L 65.7% C 0.124 H 260.4°. Best body text is #000000 at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#6491DD
RGB	rgb(100, 145, 221)
HSL	hsl(218, 64%, 63%)
HSV	hsv(218, 55%, 87%)
CMYK	cmyk(54.8%, 34.4%, 0%, 13.3%)
CIE-LAB	lab(60.05, 6.58, -43.39)
CIE-LCH	lch(60.05, 43.89, 278.62°)
OKLab	oklab(65.75% -0.0207 -0.1225)
OKLCH	oklch(65.75% 0.124 260.4)
XYZ	xyz(28.4276, 28.1783, 72.3335)
Luminance	0.2818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6491DD #DDB064

analogous

#64CDDD #6491DD #7364DD

triadic

#6491DD #DD6491 #91DD64

tetradic

#6491DD #DD64CD #DDB064 #64DD73

square

#6491DD #DD64CD #DDB064 #64DD73

split-complementary

#6491DD #DD7364 #CDDD64

monochromatic

#2453A3 #326DD2 #6491DD #96B5E8 #C8D8F3

Accessibility & contrast

On white

3.16

#6491DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.64

#6491DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6491DD

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6491DD	#FFFFFF	#000000	##000000
##6491DD	1.00	3.16	6.64	6.64
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.64	21.00	1.00	1.00
##000000	6.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7297E0

Deuteranopia (green-blind)

#638CDB

Tritanopia (blue-blind)

#18A2AD

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #6491dd;
/* rgb */ color: rgb(100, 145, 221);
/* oklch */ color: oklch(65.7% 0.124 260.4);

Tailwind

colors: {
  custom: {
    50: '#98b0e8',
    500: '#6491dd',
    950: '#000000',
  },
}

SCSS

$custom: #6491dd;
$custom-light: #98b0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#6491dd",
  "rgb": {
    "r": 100,
    "g": 145,
    "b": 221
  },
  "hsl": {
    "h": 217.686,
    "s": 64.021,
    "l": 62.941
  },
  "oklch": {
    "l": 0.65748,
    "c": 0.12428,
    "h": 260.4
  },
  "luminance": 0.28181
}

Semantic roles & 50–950 ramp

primary

#6491DD

secondary

#E4D4B9

accent

#8A1ACC

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #6491DD

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

Preview Lab → · Contrast checker → · Palette generator →