#646BE8#646BE8

#646BE8 is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.8% C 0.186 H 276.6°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#646BE8
RGB	rgb(100, 107, 232)
HSL	hsl(237, 74%, 65%)
HSV	hsv(237, 57%, 91%)
CMYK	cmyk(56.9%, 53.9%, 0%, 9%)
CIE-LAB	lab(50.74, 32.98, -64.40)
CIE-LCH	lch(50.74, 72.35, 297.12°)
OKLab	oklab(58.84% 0.0215 -0.1845)
OKLCH	oklch(58.84% 0.186 276.6)
XYZ	xyz(25.0740, 19.0491, 78.6838)
Luminance	0.1905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646BE8 #E8E164

analogous

#64ADE8 #646BE8 #9F64E8

triadic

#646BE8 #E8646B #6BE864

tetradic

#646BE8 #E864AD #E8E164 #64E89F

square

#646BE8 #E864AD #E8E164 #64E89F

split-complementary

#646BE8 #E89F64 #ADE864

monochromatic

#1B23B7 #2F38E0 #646BE8 #999EF0 #CFD1F8

Accessibility & contrast

On white

4.37

#646BE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#646BE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646BE8

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646BE8	#FFFFFF	#000000	##000000
##646BE8	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#177EEC

Deuteranopia (green-blind)

#0073E5

Tritanopia (blue-blind)

#0E889F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #646be8;
/* rgb */ color: rgb(100, 107, 232);
/* oklch */ color: oklch(58.8% 0.186 276.6);

Tailwind

colors: {
  custom: {
    50: '#9b95f0',
    500: '#646be8',
    950: '#000000',
  },
}

SCSS

$custom: #646be8;
$custom-light: #9b95f0;
$custom-dark: #000000;

JSON

{
  "hex": "#646be8",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 232
  },
  "hsl": {
    "h": 236.818,
    "s": 74.157,
    "l": 65.098
  },
  "oklch": {
    "l": 0.5884,
    "c": 0.18576,
    "h": 276.6
  },
  "luminance": 0.19051
}

Semantic roles & 50–950 ramp

primary

#646BE8

secondary

#EAE8BE

accent

#CC0FD6

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646BE8

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

Preview Lab → · Contrast checker → · Palette generator →