#646EEA#646EEA

#646EEA is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.5% C 0.185 H 275.8°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#646EEA
RGB	rgb(100, 110, 234)
HSL	hsl(236, 76%, 65%)
HSV	hsv(236, 57%, 92%)
CMYK	cmyk(57.3%, 53%, 0%, 8.2%)
CIE-LAB	lab(51.61, 31.81, -64.12)
CIE-LCH	lch(51.61, 71.58, 296.38°)
OKLab	oklab(59.53% 0.0186 -0.1837)
OKLCH	oklch(59.53% 0.185 275.8)
XYZ	xyz(25.6779, 19.7998, 80.2946)
Luminance	0.1980 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EEA #EAE064

analogous

#64B1EA #646EEA #9D64EA

triadic

#646EEA #EA646E #6EEA64

tetradic

#646EEA #EA64B1 #EAE064 #64EA9D

square

#646EEA #EA64B1 #EAE064 #64EA9D

split-complementary

#646EEA #EA9D64 #B1EA64

monochromatic

#1925BA #2E3CE3 #646EEA #9AA0F1 #D0D3F9

Accessibility & contrast

On white

4.23

#646EEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#646EEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EEA

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EEA	#FFFFFF	#000000	##000000
##646EEA	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2181EE

Deuteranopia (green-blind)

#0076E7

Tritanopia (blue-blind)

#038BA1

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #646eea;
/* rgb */ color: rgb(100, 110, 234);
/* oklch */ color: oklch(59.5% 0.185 275.8);

Tailwind

colors: {
  custom: {
    50: '#9b97f1',
    500: '#646eea',
    950: '#000000',
  },
}

SCSS

$custom: #646eea;
$custom-light: #9b97f1;
$custom-dark: #000000;

JSON

{
  "hex": "#646eea",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 234
  },
  "hsl": {
    "h": 235.522,
    "s": 76.136,
    "l": 65.49
  },
  "oklch": {
    "l": 0.59529,
    "c": 0.18461,
    "h": 275.8
  },
  "luminance": 0.19802
}

Semantic roles & 50–950 ramp

primary

#646EEA

secondary

#EBE8BE

accent

#C90DD8

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646EEA

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

Preview Lab → · Contrast checker → · Palette generator →