#647EA6#647EA6

#647EA6 is a mid, moderate blue. Relative luminance 0.204; OKLCH L 58.9% C 0.069 H 258.8°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#647EA6
RGB	rgb(100, 126, 166)
HSL	hsl(216, 27%, 52%)
HSV	hsv(216, 40%, 65%)
CMYK	cmyk(39.8%, 24.1%, 0%, 34.9%)
CIE-LAB	lab(52.27, 1.13, -24.30)
CIE-LCH	lch(52.27, 24.32, 272.66°)
OKLab	oklab(58.87% -0.0133 -0.0675)
OKLCH	oklch(58.87% 0.069 258.8)
XYZ	xyz(19.5972, 20.3832, 38.9707)
Luminance	0.2038 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EA6 #A68C64

analogous

#649FA6 #647EA6 #6B64A6

triadic

#647EA6 #A6647E #7EA664

tetradic

#647EA6 #A6649F #A68C64 #64A66B

square

#647EA6 #A6649F #A68C64 #64A66B

split-complementary

#647EA6 #A66B64 #9FA664

monochromatic

#34445B #4B6182 #647EA6 #8B9EBC #B2BFD3

Accessibility & contrast

On white

4.14

#647EA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#647EA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EA6

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EA6	#FFFFFF	#000000	##000000
##647EA6	1.00	4.14	5.08	5.08
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7080A8

Deuteranopia (green-blind)

#687AA5

Tritanopia (blue-blind)

#4E878C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647ea6;
/* rgb */ color: rgb(100, 126, 166);
/* oklch */ color: oklch(58.9% 0.069 258.8);

Tailwind

colors: {
  custom: {
    50: '#92a3c0',
    500: '#647ea6',
    950: '#000000',
  },
}

SCSS

$custom: #647ea6;
$custom-light: #92a3c0;
$custom-dark: #000000;

JSON

{
  "hex": "#647ea6",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 166
  },
  "hsl": {
    "h": 216.364,
    "s": 27.049,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58866,
    "c": 0.06876,
    "h": 258.8
  },
  "luminance": 0.20384
}

Semantic roles & 50–950 ramp

primary

#647EA6

secondary

#C1B6A4

accent

#9E64C3

background

#F9FAFB

surface

#F1F3F7

border

#CBCDD0

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #647EA6

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

Preview Lab → · Contrast checker → · Palette generator →