#647DB0#647DB0

#647DB0 is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.1% C 0.084 H 264.0°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#647DB0
RGB	rgb(100, 125, 176)
HSL	hsl(220, 32%, 54%)
HSV	hsv(220, 43%, 69%)
CMYK	cmyk(43.2%, 29%, 0%, 31%)
CIE-LAB	lab(52.41, 4.61, -29.86)
CIE-LCH	lch(52.41, 30.21, 278.78°)
OKLab	oklab(59.12% -0.0088 -0.0834)
OKLCH	oklch(59.12% 0.084 264)
XYZ	xyz(20.4231, 20.5100, 43.9486)
Luminance	0.2051 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DB0 #B09764

analogous

#64A3B0 #647DB0 #7164B0

triadic

#647DB0 #B0647D #7DB064

tetradic

#647DB0 #B064A3 #B09764 #64B071

square

#647DB0 #B064A3 #B09764 #64B071

split-complementary

#647DB0 #B07164 #A3B064

monochromatic

#344466 #495F8E #647DB0 #8D9FC5 #B5C1D9

Accessibility & contrast

On white

4.12

#647DB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#647DB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DB0

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DB0	#FFFFFF	#000000	##000000
##647DB0	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B81B2

Deuteranopia (green-blind)

#637AAF

Tritanopia (blue-blind)

#49888F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647db0;
/* rgb */ color: rgb(100, 125, 176);
/* oklch */ color: oklch(59.1% 0.084 264.0);

Tailwind

colors: {
  custom: {
    50: '#93a2c7',
    500: '#647db0',
    950: '#000000',
  },
}

SCSS

$custom: #647db0;
$custom-light: #93a2c7;
$custom-dark: #000000;

JSON

{
  "hex": "#647db0",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 176
  },
  "hsl": {
    "h": 220.263,
    "s": 32.479,
    "l": 54.118
  },
  "oklch": {
    "l": 0.59116,
    "c": 0.08389,
    "h": 264
  },
  "luminance": 0.20511
}

Semantic roles & 50–950 ramp

primary

#647DB0

secondary

#C8BDA8

accent

#A65FC9

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #647DB0

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

Preview Lab → · Contrast checker → · Palette generator →