#647EA3#647EA3

#647EA3 is a mid, moderate blue. Relative luminance 0.203; OKLCH L 58.7% C 0.065 H 257.2°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#647EA3
RGB	rgb(100, 126, 163)
HSL	hsl(215, 26%, 52%)
HSV	hsv(215, 39%, 64%)
CMYK	cmyk(38.7%, 22.7%, 0%, 36.1%)
CIE-LAB	lab(52.15, 0.28, -22.75)
CIE-LCH	lch(52.15, 22.75, 270.70°)
OKLab	oklab(58.73% -0.0143 -0.063)
OKLCH	oklch(58.73% 0.065 257.2)
XYZ	xyz(19.3252, 20.2744, 37.5383)
Luminance	0.2028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EA3 #A38964

analogous

#649EA3 #647EA3 #6A64A3

triadic

#647EA3 #A3647E #7EA364

tetradic

#647EA3 #A3649E #A38964 #64A36A

square

#647EA3 #A3649E #A38964 #64A36A

split-complementary

#647EA3 #A36A64 #9EA364

monochromatic

#344358 #4B607F #647EA3 #8A9EBA #B1BED1

Accessibility & contrast

On white

4.15

#647EA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#647EA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EA3

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EA3	#FFFFFF	#000000	##000000
##647EA3	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7180A5

Deuteranopia (green-blind)

#6A7AA2

Tritanopia (blue-blind)

#4F868A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #647ea3;
/* rgb */ color: rgb(100, 126, 163);
/* oklch */ color: oklch(58.7% 0.065 257.2);

Tailwind

colors: {
  custom: {
    50: '#92a3be',
    500: '#647ea3',
    950: '#000000',
  },
}

SCSS

$custom: #647ea3;
$custom-light: #92a3be;
$custom-dark: #000000;

JSON

{
  "hex": "#647ea3",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 163
  },
  "hsl": {
    "h": 215.238,
    "s": 25.506,
    "l": 51.569
  },
  "oklch": {
    "l": 0.5873,
    "c": 0.06465,
    "h": 257.2
  },
  "luminance": 0.20275
}

Semantic roles & 50–950 ramp

primary

#647EA3

secondary

#BFB4A4

accent

#9C66C2

background

#F9FAFB

surface

#F1F3F6

border

#CBCDD0

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #647EA3

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

Preview Lab → · Contrast checker → · Palette generator →