#647CB2#647CB2

#647CB2 is a mid, moderate blue. Relative luminance 0.203; OKLCH L 59.0% C 0.088 H 265.5°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#647CB2
RGB	rgb(100, 124, 178)
HSL	hsl(222, 34%, 55%)
HSV	hsv(222, 44%, 70%)
CMYK	cmyk(43.8%, 30.3%, 0%, 30.2%)
CIE-LAB	lab(52.22, 5.80, -31.31)
CIE-LCH	lch(52.22, 31.84, 280.49°)
OKLab	oklab(59% -0.007 -0.0876)
OKLCH	oklch(59% 0.088 265.5)
XYZ	xyz(20.4965, 20.3378, 44.9564)
Luminance	0.2034 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CB2 #B29A64

analogous

#64A3B2 #647CB2 #7364B2

triadic

#647CB2 #B2647C #7CB264

tetradic

#647CB2 #B264A3 #B29A64 #64B273

square

#647CB2 #B264A3 #B29A64 #64B273

split-complementary

#647CB2 #B27364 #A3B264

monochromatic

#344468 #485E91 #647CB2 #8D9FC6 #B6C1DB

Accessibility & contrast

On white

4.14

#647CB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#647CB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CB2

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CB2	#FFFFFF	#000000	##000000
##647CB2	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6980B4

Deuteranopia (green-blind)

#6179B1

Tritanopia (blue-blind)

#48878F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647cb2;
/* rgb */ color: rgb(100, 124, 178);
/* oklch */ color: oklch(59.0% 0.088 265.5);

Tailwind

colors: {
  custom: {
    50: '#93a1c9',
    500: '#647cb2',
    950: '#000000',
  },
}

SCSS

$custom: #647cb2;
$custom-light: #93a1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#647cb2",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 178
  },
  "hsl": {
    "h": 221.538,
    "s": 33.621,
    "l": 54.51
  },
  "oklch": {
    "l": 0.58996,
    "c": 0.08788,
    "h": 265.5
  },
  "luminance": 0.20339
}

Semantic roles & 50–950 ramp

primary

#647CB2

secondary

#C9BFA8

accent

#A95ECA

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #647CB2

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

Preview Lab → · Contrast checker → · Palette generator →