#647CBD#647CBD

#647CBD is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.6% C 0.104 H 267.8°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#647CBD
RGB	rgb(100, 124, 189)
HSL	hsl(224, 40%, 57%)
HSV	hsv(224, 47%, 74%)
CMYK	cmyk(47.1%, 34.4%, 0%, 25.9%)
CIE-LAB	lab(52.73, 9.10, -36.84)
CIE-LCH	lch(52.73, 37.94, 283.88°)
OKLab	oklab(59.56% -0.004 -0.1036)
OKLCH	oklch(59.56% 0.104 267.8)
XYZ	xyz(21.6455, 20.7974, 51.0080)
Luminance	0.2080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CBD #BDA564

analogous

#64A9BD #647CBD #7964BD

triadic

#647CBD #BD647C #7CBD64

tetradic

#647CBD #BD64A9 #BDA564 #64BD79

square

#647CBD #BD64A9 #BDA564 #64BD79

split-complementary

#647CBD #BD7964 #A9BD64

monochromatic

#324475 #445DA0 #647CBD #8FA0CF #BAC5E2

Accessibility & contrast

On white

4.07

#647CBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#647CBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CBD

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CBD	#FFFFFF	#000000	##000000
##647CBD	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6482C0

Deuteranopia (green-blind)

#5B7ABC

Tritanopia (blue-blind)

#418A94

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647cbd;
/* rgb */ color: rgb(100, 124, 189);
/* oklch */ color: oklch(59.6% 0.104 267.8);

Tailwind

colors: {
  custom: {
    50: '#95a1d1',
    500: '#647cbd',
    950: '#000000',
  },
}

SCSS

$custom: #647cbd;
$custom-light: #95a1d1;
$custom-dark: #000000;

JSON

{
  "hex": "#647cbd",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 189
  },
  "hsl": {
    "h": 223.82,
    "s": 40.271,
    "l": 56.667
  },
  "oklch": {
    "l": 0.5956,
    "c": 0.10368,
    "h": 267.8
  },
  "luminance": 0.20799
}

Semantic roles & 50–950 ramp

primary

#647CBD

secondary

#D1C7AC

accent

#B058D0

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0F14

muted

#7E7E82

Preview Lab

Preview with #647CBD

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

Preview Lab → · Contrast checker → · Palette generator →