#647CBF#647CBF

#647CBF is a mid, moderate blue. Relative luminance 0.209; OKLCH L 59.7% C 0.107 H 268.1°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#647CBF
RGB	rgb(100, 124, 191)
HSL	hsl(224, 42%, 57%)
HSV	hsv(224, 48%, 75%)
CMYK	cmyk(47.6%, 35.1%, 0%, 25.1%)
CIE-LAB	lab(52.82, 9.71, -37.83)
CIE-LCH	lch(52.82, 39.06, 284.40°)
OKLab	oklab(59.67% -0.0035 -0.1065)
OKLCH	oklch(59.67% 0.107 268.1)
XYZ	xyz(21.8641, 20.8849, 52.1592)
Luminance	0.2089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CBF #BFA764

analogous

#64AABF #647CBF #7A64BF

triadic

#647CBF #BF647C #7CBF64

tetradic

#647CBF #BF64AA #BFA764 #64BF7A

square

#647CBF #BF64AA #BFA764 #64BF7A

split-complementary

#647CBF #BF7A64 #AABF64

monochromatic

#314477 #435CA3 #647CBF #8FA1D1 #BBC5E3

Accessibility & contrast

On white

4.06

#647CBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#647CBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CBF

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CBF	#FFFFFF	#000000	##000000
##647CBF	1.00	4.06	5.18	5.18
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6382C2

Deuteranopia (green-blind)

#5A7ABE

Tritanopia (blue-blind)

#408A94

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647cbf;
/* rgb */ color: rgb(100, 124, 191);
/* oklch */ color: oklch(59.7% 0.107 268.1);

Tailwind

colors: {
  custom: {
    50: '#95a1d2',
    500: '#647cbf',
    950: '#000000',
  },
}

SCSS

$custom: #647cbf;
$custom-light: #95a1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#647cbf",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 191
  },
  "hsl": {
    "h": 224.176,
    "s": 41.553,
    "l": 57.059
  },
  "oklch": {
    "l": 0.59666,
    "c": 0.10655,
    "h": 268.1
  },
  "luminance": 0.20886
}

Semantic roles & 50–950 ramp

primary

#647CBF

secondary

#D2C8AD

accent

#B156D1

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0F14

muted

#7E7E82

Preview Lab

Preview with #647CBF

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

Preview Lab → · Contrast checker → · Palette generator →