#647DB8#647DB8

#647DB8 is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.5% C 0.095 H 266.1°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#647DB8
RGB	rgb(100, 125, 184)
HSL	hsl(222, 37%, 56%)
HSV	hsv(222, 46%, 72%)
CMYK	cmyk(45.7%, 32.1%, 0%, 27.8%)
CIE-LAB	lab(52.77, 6.99, -33.90)
CIE-LCH	lch(52.77, 34.61, 281.65°)
OKLab	oklab(59.51% -0.0066 -0.0951)
OKLCH	oklch(59.51% 0.095 266.1)
XYZ	xyz(21.2381, 20.8360, 48.2408)
Luminance	0.2084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DB8 #B89F64

analogous

#64A7B8 #647DB8 #7564B8

triadic

#647DB8 #B8647D #7DB864

tetradic

#647DB8 #B864A7 #B89F64 #64B875

square

#647DB8 #B864A7 #B89F64 #64B875

split-complementary

#647DB8 #B87564 #A7B864

monochromatic

#33456F #465F99 #647DB8 #8EA0CB #B8C3DE

Accessibility & contrast

On white

4.06

#647DB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#647DB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DB8

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DB8	#FFFFFF	#000000	##000000
##647DB8	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6882BA

Deuteranopia (green-blind)

#5F7AB7

Tritanopia (blue-blind)

#448992

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647db8;
/* rgb */ color: rgb(100, 125, 184);
/* oklch */ color: oklch(59.5% 0.095 266.1);

Tailwind

colors: {
  custom: {
    50: '#94a2cd',
    500: '#647db8',
    950: '#000000',
  },
}

SCSS

$custom: #647db8;
$custom-light: #94a2cd;
$custom-dark: #000000;

JSON

{
  "hex": "#647db8",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 184
  },
  "hsl": {
    "h": 222.143,
    "s": 37.168,
    "l": 55.686
  },
  "oklch": {
    "l": 0.59515,
    "c": 0.09532,
    "h": 266.1
  },
  "luminance": 0.20837
}

Semantic roles & 50–950 ramp

primary

#647DB8

secondary

#CDC3AA

accent

#AB5BCD

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #647DB8

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

Preview Lab → · Contrast checker → · Palette generator →