#646DFD#646DFD

#646DFD is a mid, highly saturated blue. Relative luminance 0.207; OKLCH L 60.7% C 0.211 H 275.5°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#646DFD
RGB	rgb(100, 109, 253)
HSL	hsl(236, 97%, 69%)
HSV	hsv(236, 60%, 99%)
CMYK	cmyk(60.5%, 56.9%, 0%, 0.8%)
CIE-LAB	lab(52.66, 38.51, -73.01)
CIE-LCH	lch(52.66, 82.54, 297.81°)
OKLab	oklab(60.72% 0.0201 -0.2098)
OKLCH	oklch(60.72% 0.211 275.5)
XYZ	xyz(28.4480, 20.7362, 95.4128)
Luminance	0.2074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DFD #FDF464

analogous

#64B9FD #646DFD #A864FD

triadic

#646DFD #FD646D #6DFD64

tetradic

#646DFD #FD64B9 #FDF464 #64FDA8

square

#646DFD #FD64B9 #FDF464 #64FDA8

split-complementary

#646DFD #FDA864 #B9FD64

monochromatic

#0310E4 #2834FC #646DFD #A0A6FE #DDDFFF

Accessibility & contrast

On white

4.08

#646DFD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#646DFD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DFD

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DFD	#FFFFFF	#000000	##000000
##646DFD	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0084FF

Deuteranopia (green-blind)

#0077FA

Tritanopia (blue-blind)

#0090AB

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #646dfd;
/* rgb */ color: rgb(100, 109, 253);
/* oklch */ color: oklch(60.7% 0.211 275.5);

Tailwind

colors: {
  custom: {
    50: '#9e97ff',
    500: '#646dfd',
    950: '#000000',
  },
}

SCSS

$custom: #646dfd;
$custom-light: #9e97ff;
$custom-dark: #000000;

JSON

{
  "hex": "#646dfd",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 253
  },
  "hsl": {
    "h": 236.471,
    "s": 97.452,
    "l": 69.216
  },
  "oklch": {
    "l": 0.60721,
    "c": 0.21078,
    "h": 275.5
  },
  "luminance": 0.20738
}

Semantic roles & 50–950 ramp

primary

#646DFD

secondary

#F5F2C8

accent

#D800E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #646DFD

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

Preview Lab → · Contrast checker → · Palette generator →