#647DB1#647DB1

#647DB1 is a mid, moderate blue. Relative luminance 0.206; OKLCH L 59.2% C 0.085 H 264.2°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#647DB1
RGB	rgb(100, 125, 177)
HSL	hsl(221, 33%, 54%)
HSV	hsv(221, 44%, 69%)
CMYK	cmyk(43.5%, 29.4%, 0%, 30.6%)
CIE-LAB	lab(52.45, 4.91, -30.37)
CIE-LCH	lch(52.45, 30.76, 279.18°)
OKLab	oklab(59.17% -0.0085 -0.0849)
OKLCH	oklch(59.17% 0.085 264.2)
XYZ	xyz(20.5224, 20.5497, 44.4716)
Luminance	0.2055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DB1 #B19864

analogous

#64A4B1 #647DB1 #7264B1

triadic

#647DB1 #B1647D #7DB164

tetradic

#647DB1 #B164A4 #B19864 #64B172

square

#647DB1 #B164A4 #B19864 #64B172

split-complementary

#647DB1 #B17264 #A4B164

monochromatic

#344467 #485F90 #647DB1 #8D9FC5 #B5C1DA

Accessibility & contrast

On white

4.11

#647DB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#647DB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DB1

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DB1	#FFFFFF	#000000	##000000
##647DB1	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A81B3

Deuteranopia (green-blind)

#627AB0

Tritanopia (blue-blind)

#48888F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647db1;
/* rgb */ color: rgb(100, 125, 177);
/* oklch */ color: oklch(59.2% 0.085 264.2);

Tailwind

colors: {
  custom: {
    50: '#93a2c8',
    500: '#647db1',
    950: '#000000',
  },
}

SCSS

$custom: #647db1;
$custom-light: #93a2c8;
$custom-dark: #000000;

JSON

{
  "hex": "#647db1",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 177
  },
  "hsl": {
    "h": 220.519,
    "s": 33.047,
    "l": 54.314
  },
  "oklch": {
    "l": 0.59165,
    "c": 0.08531,
    "h": 264.2
  },
  "luminance": 0.20551
}

Semantic roles & 50–950 ramp

primary

#647DB1

secondary

#C9BEA8

accent

#A75FC9

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #647DB1

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

Preview Lab → · Contrast checker → · Palette generator →