#647EA5#647EA5

#647EA5 is a mid, moderate blue. Relative luminance 0.203; OKLCH L 58.8% C 0.067 H 258.3°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#647EA5
RGB	rgb(100, 126, 165)
HSL	hsl(216, 27%, 52%)
HSV	hsv(216, 39%, 65%)
CMYK	cmyk(39.4%, 23.6%, 0%, 35.3%)
CIE-LAB	lab(52.23, 0.84, -23.78)
CIE-LCH	lch(52.23, 23.80, 272.03°)
OKLab	oklab(58.82% -0.0136 -0.066)
OKLCH	oklch(58.82% 0.067 258.3)
XYZ	xyz(19.5058, 20.3466, 38.4895)
Luminance	0.2035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EA5 #A58B64

analogous

#649FA5 #647EA5 #6B64A5

triadic

#647EA5 #A5647E #7EA564

tetradic

#647EA5 #A5649F #A58B64 #64A56B

square

#647EA5 #A5649F #A58B64 #64A56B

split-complementary

#647EA5 #A56B64 #9FA564

monochromatic

#34445A #4B6081 #647EA5 #8B9EBB #B1BED2

Accessibility & contrast

On white

4.14

#647EA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#647EA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EA5

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EA5	#FFFFFF	#000000	##000000
##647EA5	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)

#7080A7

Deuteranopia (green-blind)

#697AA4

Tritanopia (blue-blind)

#4E868B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647ea5;
/* rgb */ color: rgb(100, 126, 165);
/* oklch */ color: oklch(58.8% 0.067 258.3);

Tailwind

colors: {
  custom: {
    50: '#92a3bf',
    500: '#647ea5',
    950: '#000000',
  },
}

SCSS

$custom: #647ea5;
$custom-light: #92a3bf;
$custom-dark: #000000;

JSON

{
  "hex": "#647ea5",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 165
  },
  "hsl": {
    "h": 216,
    "s": 26.531,
    "l": 51.961
  },
  "oklch": {
    "l": 0.5882,
    "c": 0.06738,
    "h": 258.3
  },
  "luminance": 0.20348
}

Semantic roles & 50–950 ramp

primary

#647EA5

secondary

#C1B5A4

accent

#9D65C3

background

#F9FAFB

surface

#F1F3F7

border

#CBCDD0

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #647EA5

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

Preview Lab → · Contrast checker → · Palette generator →