#647DBD#647DBD

#647DBD is a mid, moderate blue. Relative luminance 0.211; OKLCH L 59.8% C 0.102 H 267.1°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#647DBD
RGB	rgb(100, 125, 189)
HSL	hsl(223, 40%, 57%)
HSV	hsv(223, 47%, 74%)
CMYK	cmyk(47.1%, 33.9%, 0%, 25.9%)
CIE-LAB	lab(53.00, 8.50, -36.40)
CIE-LCH	lch(53.00, 37.38, 283.14°)
OKLab	oklab(59.77% -0.0052 -0.1023)
OKLCH	oklch(59.77% 0.102 267.1)
XYZ	xyz(21.7715, 21.0494, 51.0500)
Luminance	0.2105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DBD #BDA464

analogous

#64AABD #647DBD #7864BD

triadic

#647DBD #BD647D #7DBD64

tetradic

#647DBD #BD64AA #BDA464 #64BD78

square

#647DBD #BD64AA #BDA464 #64BD78

split-complementary

#647DBD #BD7864 #AABD64

monochromatic

#324575 #445EA0 #647DBD #8FA1CF #BAC5E2

Accessibility & contrast

On white

4.03

#647DBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#647DBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DBD

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DBD	#FFFFFF	#000000	##000000
##647DBD	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6583C0

Deuteranopia (green-blind)

#5C7BBC

Tritanopia (blue-blind)

#418A94

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #647dbd;
/* rgb */ color: rgb(100, 125, 189);
/* oklch */ color: oklch(59.8% 0.102 267.1);

Tailwind

colors: {
  custom: {
    50: '#95a2d1',
    500: '#647dbd',
    950: '#000000',
  },
}

SCSS

$custom: #647dbd;
$custom-light: #95a2d1;
$custom-dark: #000000;

JSON

{
  "hex": "#647dbd",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 189
  },
  "hsl": {
    "h": 223.146,
    "s": 40.271,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59774,
    "c": 0.10247,
    "h": 267.1
  },
  "luminance": 0.21051
}

Semantic roles & 50–950 ramp

primary

#647DBD

secondary

#D1C6AC

accent

#AE58D0

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0F14

muted

#7E7E82

Preview Lab

Preview with #647DBD

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

Preview Lab → · Contrast checker → · Palette generator →