#646EBD#646EBD

#646EBD is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.6% C 0.122 H 276.3°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#646EBD
RGB	rgb(100, 110, 189)
HSL	hsl(233, 40%, 57%)
HSV	hsv(233, 47%, 74%)
CMYK	cmyk(47.1%, 41.8%, 0%, 25.9%)
CIE-LAB	lab(48.93, 17.61, -42.83)
CIE-LCH	lch(48.93, 46.31, 292.35°)
OKLab	oklab(56.63% 0.0134 -0.1212)
OKLCH	oklch(56.63% 0.122 276.3)
XYZ	xyz(20.0139, 17.5342, 50.4641)
Luminance	0.1754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EBD #BDB364

analogous

#649BBD #646EBD #8764BD

triadic

#646EBD #BD646E #6EBD64

tetradic

#646EBD #BD649B #BDB364 #64BD87

square

#646EBD #BD649B #BDB364 #64BD87

split-complementary

#646EBD #BD8764 #9BBD64

monochromatic

#323975 #444EA0 #646EBD #8F96CF #BABEE2

Accessibility & contrast

On white

4.66

#646EBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#646EBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #646EBD

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EBD	#FFFFFF	#000000	##FFFFFF
##646EBD	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5078C0

Deuteranopia (green-blind)

#4871BB

Tritanopia (blue-blind)

#447E8C

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #646ebd;
/* rgb */ color: rgb(100, 110, 189);
/* oklch */ color: oklch(56.6% 0.122 276.3);

Tailwind

colors: {
  custom: {
    50: '#9597d1',
    500: '#646ebd',
    950: '#000000',
  },
}

SCSS

$custom: #646ebd;
$custom-light: #9597d1;
$custom-dark: #000000;

JSON

{
  "hex": "#646ebd",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 189
  },
  "hsl": {
    "h": 233.258,
    "s": 40.271,
    "l": 56.667
  },
  "oklch": {
    "l": 0.56634,
    "c": 0.1219,
    "h": 276.3
  },
  "luminance": 0.17535
}

Semantic roles & 50–950 ramp

primary

#646EBD

secondary

#D1CDAC

accent

#C358D0

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0D14

muted

#7E7E82

Preview Lab

Preview with #646EBD

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

Preview Lab → · Contrast checker → · Palette generator →