#646BFD#646BFD

#646BFD is a mid, highly saturated blue. Relative luminance 0.203; OKLCH L 60.4% C 0.213 H 275.9°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#646BFD
RGB	rgb(100, 107, 253)
HSL	hsl(237, 97%, 69%)
HSV	hsv(237, 60%, 99%)
CMYK	cmyk(60.5%, 57.7%, 0%, 0.8%)
CIE-LAB	lab(52.19, 39.70, -73.77)
CIE-LCH	lch(52.19, 83.78, 298.29°)
OKLab	oklab(60.37% 0.0218 -0.2121)
OKLCH	oklch(60.37% 0.213 275.9)
XYZ	xyz(28.2371, 20.3143, 95.3425)
Luminance	0.2032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646BFD #FDF664

analogous

#64B8FD #646BFD #AA64FD

triadic

#646BFD #FD646B #6BFD64

tetradic

#646BFD #FD64B8 #FDF664 #64FDAA

square

#646BFD #FD64B8 #FDF664 #64FDAA

split-complementary

#646BFD #FDAA64 #B8FD64

monochromatic

#030DE4 #2831FC #646BFD #A0A5FE #DDDEFF

Accessibility & contrast

On white

4.15

#646BFD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#646BFD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646BFD

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646BFD	#FFFFFF	#000000	##000000
##646BFD	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0083FF

Deuteranopia (green-blind)

#0076FA

Tritanopia (blue-blind)

#008EAA

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #646bfd;
/* rgb */ color: rgb(100, 107, 253);
/* oklch */ color: oklch(60.4% 0.213 275.9);

Tailwind

colors: {
  custom: {
    50: '#9e95ff',
    500: '#646bfd',
    950: '#000000',
  },
}

SCSS

$custom: #646bfd;
$custom-light: #9e95ff;
$custom-dark: #000000;

JSON

{
  "hex": "#646bfd",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 253
  },
  "hsl": {
    "h": 237.255,
    "s": 97.452,
    "l": 69.216
  },
  "oklch": {
    "l": 0.60374,
    "c": 0.2132,
    "h": 275.9
  },
  "luminance": 0.20317
}

Semantic roles & 50–950 ramp

primary

#646BFD

secondary

#F5F3C8

accent

#DB00E6

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #646BFD

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

Preview Lab → · Contrast checker → · Palette generator →