#647CAF#647CAF

#647CAF is a mid, moderate blue. Relative luminance 0.202; OKLCH L 58.8% C 0.084 H 264.6°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#647CAF
RGB	rgb(100, 124, 175)
HSL	hsl(221, 32%, 54%)
HSV	hsv(221, 43%, 69%)
CMYK	cmyk(42.9%, 29.1%, 0%, 31.4%)
CIE-LAB	lab(52.08, 4.91, -29.79)
CIE-LCH	lch(52.08, 30.19, 279.36°)
OKLab	oklab(58.85% -0.0078 -0.0832)
OKLCH	oklch(58.85% 0.084 264.6)
XYZ	xyz(20.1986, 20.2187, 43.3874)
Luminance	0.2022 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CAF #AF9764

analogous

#64A2AF #647CAF #7264AF

triadic

#647CAF #AF647C #7CAF64

tetradic

#647CAF #AF64A2 #AF9764 #64AF72

square

#647CAF #AF64A2 #AF9764 #64AF72

split-complementary

#647CAF #AF7264 #A2AF64

monochromatic

#344465 #495F8D #647CAF #8C9EC4 #B5C0D9

Accessibility & contrast

On white

4.16

#647CAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#647CAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CAF

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CAF	#FFFFFF	#000000	##000000
##647CAF	1.00	4.16	5.04	5.04
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A80B1

Deuteranopia (green-blind)

#6279AE

Tritanopia (blue-blind)

#4A878E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #647caf;
/* rgb */ color: rgb(100, 124, 175);
/* oklch */ color: oklch(58.8% 0.084 264.6);

Tailwind

colors: {
  custom: {
    50: '#93a1c7',
    500: '#647caf',
    950: '#000000',
  },
}

SCSS

$custom: #647caf;
$custom-light: #93a1c7;
$custom-dark: #000000;

JSON

{
  "hex": "#647caf",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 175
  },
  "hsl": {
    "h": 220.8,
    "s": 31.915,
    "l": 53.922
  },
  "oklch": {
    "l": 0.58848,
    "c": 0.08358,
    "h": 264.6
  },
  "luminance": 0.2022
}

Semantic roles & 50–950 ramp

primary

#647CAF

secondary

#C7BDA7

accent

#A760C8

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #647CAF

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

Preview Lab → · Contrast checker → · Palette generator →