#646EE3#646EE3

#646EE3 is a mid, vivid blue. Relative luminance 0.194; OKLCH L 59.0% C 0.175 H 276.0°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#646EE3
RGB	rgb(100, 110, 227)
HSL	hsl(235, 69%, 64%)
HSV	hsv(235, 56%, 89%)
CMYK	cmyk(55.9%, 51.5%, 0%, 11%)
CIE-LAB	lab(51.16, 29.56, -60.92)
CIE-LCH	lch(51.16, 67.71, 295.89°)
OKLab	oklab(59.05% 0.0182 -0.1742)
OKLCH	oklch(59.05% 0.175 276)
XYZ	xyz(24.6921, 19.4055, 75.1026)
Luminance	0.1941 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EE3 #E3D964

analogous

#64ADE3 #646EE3 #9A64E3

triadic

#646EE3 #E3646E #6EE364

tetradic

#646EE3 #E364AD #E3D964 #64E39A

square

#646EE3 #E364AD #E3D964 #64E39A

split-complementary

#646EE3 #E39A64 #ADE364

monochromatic

#1F2AAD #303EDA #646EE3 #989EEC #CCCFF6

Accessibility & contrast

On white

4.30

#646EE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#646EE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EE3

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EE3	#FFFFFF	#000000	##000000
##646EE3	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D7FE7

Deuteranopia (green-blind)

#1275E1

Tritanopia (blue-blind)

#1B899E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646ee3;
/* rgb */ color: rgb(100, 110, 227);
/* oklch */ color: oklch(59.0% 0.175 276.0);

Tailwind

colors: {
  custom: {
    50: '#9a97ec',
    500: '#646ee3',
    950: '#000000',
  },
}

SCSS

$custom: #646ee3;
$custom-light: #9a97ec;
$custom-dark: #000000;

JSON

{
  "hex": "#646ee3",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 227
  },
  "hsl": {
    "h": 235.276,
    "s": 69.399,
    "l": 64.118
  },
  "oklch": {
    "l": 0.59046,
    "c": 0.1752,
    "h": 276
  },
  "luminance": 0.19407
}

Semantic roles & 50–950 ramp

primary

#646EE3

secondary

#E8E4BB

accent

#C214D1

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646EE3

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

Preview Lab → · Contrast checker → · Palette generator →