#646ED1#646ED1

#646ED1 is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.9% C 0.150 H 276.3°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#646ED1
RGB	rgb(100, 110, 209)
HSL	hsl(234, 54%, 61%)
HSV	hsv(234, 52%, 82%)
CMYK	cmyk(52.2%, 47.4%, 0%, 18%)
CIE-LAB	lab(50.05, 23.84, -52.50)
CIE-LCH	lch(50.05, 57.66, 294.42°)
OKLab	oklab(57.86% 0.0165 -0.1495)
OKLCH	oklch(57.86% 0.15 276.3)
XYZ	xyz(22.3364, 18.4632, 62.6960)
Luminance	0.1847 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646ED1 #D1C764

analogous

#64A5D1 #646ED1 #9064D1

triadic

#646ED1 #D1646E #6ED164

tetradic

#646ED1 #D164A5 #D1C764 #64D190

square

#646ED1 #D164A5 #D1C764 #64D190

split-complementary

#646ED1 #D19064 #A5D164

monochromatic

#2B3490 #3945BF #646ED1 #939ADF #C2C6ED

Accessibility & contrast

On white

4.47

#646ED1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#646ED1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646ED1

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646ED1	#FFFFFF	#000000	##000000
##646ED1	1.00	4.47	4.69	4.69
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#417CD5

Deuteranopia (green-blind)

#3573CF

Tritanopia (blue-blind)

#348495

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646ed1;
/* rgb */ color: rgb(100, 110, 209);
/* oklch */ color: oklch(57.9% 0.150 276.3);

Tailwind

colors: {
  custom: {
    50: '#9797e0',
    500: '#646ed1',
    950: '#000000',
  },
}

SCSS

$custom: #646ed1;
$custom-light: #9797e0;
$custom-dark: #000000;

JSON

{
  "hex": "#646ed1",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 209
  },
  "hsl": {
    "h": 234.495,
    "s": 54.229,
    "l": 60.588
  },
  "oklch": {
    "l": 0.57857,
    "c": 0.15042,
    "h": 276.3
  },
  "luminance": 0.18465
}

Semantic roles & 50–950 ramp

primary

#646ED1

secondary

#DDD9B4

accent

#B324C2

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646ED1

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

Preview Lab → · Contrast checker → · Palette generator →