#646AE3#646AE3

#646AE3 is a mid, vivid blue. Relative luminance 0.186; OKLCH L 58.3% C 0.180 H 277.1°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#646AE3
RGB	rgb(100, 106, 227)
HSL	hsl(237, 69%, 64%)
HSV	hsv(237, 56%, 89%)
CMYK	cmyk(55.9%, 53.3%, 0%, 11%)
CIE-LAB	lab(50.17, 31.99, -62.51)
CIE-LCH	lch(50.17, 70.22, 297.10°)
OKLab	oklab(58.3% 0.0223 -0.179)
OKLCH	oklch(58.3% 0.18 277.1)
XYZ	xyz(24.2703, 18.5618, 74.9620)
Luminance	0.1856 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AE3 #E3DD64

analogous

#64AAE3 #646AE3 #9E64E3

triadic

#646AE3 #E3646A #6AE364

tetradic

#646AE3 #E364AA #E3DD64 #64E39E

square

#646AE3 #E364AA #E3DD64 #64E39E

split-complementary

#646AE3 #E39E64 #AAE364

monochromatic

#1F26AD #3038DA #646AE3 #989CEC #CCCEF6

Accessibility & contrast

On white

4.46

#646AE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#646AE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AE3

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AE3	#FFFFFF	#000000	##000000
##646AE3	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F7DE7

Deuteranopia (green-blind)

#0072E0

Tritanopia (blue-blind)

#1C869C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646ae3;
/* rgb */ color: rgb(100, 106, 227);
/* oklch */ color: oklch(58.3% 0.180 277.1);

Tailwind

colors: {
  custom: {
    50: '#9a94ed',
    500: '#646ae3',
    950: '#000000',
  },
}

SCSS

$custom: #646ae3;
$custom-light: #9a94ed;
$custom-dark: #000000;

JSON

{
  "hex": "#646ae3",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 227
  },
  "hsl": {
    "h": 237.165,
    "s": 69.399,
    "l": 64.118
  },
  "oklch": {
    "l": 0.58305,
    "c": 0.18035,
    "h": 277.1
  },
  "luminance": 0.18563
}

Semantic roles & 50–950 ramp

primary

#646AE3

secondary

#E8E5BB

accent

#C814D1

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646AE3

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

Preview Lab → · Contrast checker → · Palette generator →