#646EC2#646EC2

#646EC2 is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.9% C 0.129 H 276.4°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#646EC2
RGB	rgb(100, 110, 194)
HSL	hsl(234, 44%, 58%)
HSV	hsv(234, 48%, 76%)
CMYK	cmyk(48.5%, 43.3%, 0%, 23.9%)
CIE-LAB	lab(49.20, 19.15, -45.28)
CIE-LCH	lch(49.20, 49.17, 292.92°)
OKLab	oklab(56.93% 0.0143 -0.1283)
OKLCH	oklch(56.93% 0.129 276.4)
XYZ	xyz(20.5660, 17.7551, 53.3719)
Luminance	0.1776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EC2 #C2B864

analogous

#649DC2 #646EC2 #8964C2

triadic

#646EC2 #C2646E #6EC264

tetradic

#646EC2 #C2649D #C2B864 #64C289

square

#646EC2 #C2649D #C2B864 #64C289

split-complementary

#646EC2 #C28964 #9DC264

monochromatic

#30387B #424DA7 #646EC2 #9097D3 #BCC0E5

Accessibility & contrast

On white

4.61

#646EC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#646EC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #646EC2

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EC2	#FFFFFF	#000000	##FFFFFF
##646EC2	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C79C5

Deuteranopia (green-blind)

#4471C0

Tritanopia (blue-blind)

#40808E

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #646ec2;
/* rgb */ color: rgb(100, 110, 194);
/* oklch */ color: oklch(56.9% 0.129 276.4);

Tailwind

colors: {
  custom: {
    50: '#9597d5',
    500: '#646ec2',
    950: '#000000',
  },
}

SCSS

$custom: #646ec2;
$custom-light: #9597d5;
$custom-dark: #000000;

JSON

{
  "hex": "#646ec2",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 194
  },
  "hsl": {
    "h": 233.617,
    "s": 43.519,
    "l": 57.647
  },
  "oklch": {
    "l": 0.5693,
    "c": 0.12913,
    "h": 276.4
  },
  "luminance": 0.17756
}

Semantic roles & 50–950 ramp

primary

#646EC2

secondary

#D4D0AE

accent

#C655D3

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0D14

muted

#7E7E83

Preview Lab

Preview with #646EC2

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

Preview Lab → · Contrast checker → · Palette generator →