#647DCB#647DCB

#647DCB is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.5% C 0.122 H 269.1°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#647DCB
RGB	rgb(100, 125, 203)
HSL	hsl(225, 50%, 59%)
HSV	hsv(225, 51%, 80%)
CMYK	cmyk(50.7%, 38.4%, 0%, 20.4%)
CIE-LAB	lab(53.69, 12.82, -43.30)
CIE-LCH	lch(53.69, 45.16, 286.49°)
OKLab	oklab(60.53% -0.0019 -0.1224)
OKLCH	oklch(60.53% 0.122 269.1)
XYZ	xyz(23.3651, 21.6868, 59.4431)
Luminance	0.2169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DCB #CBB264

analogous

#64B1CB #647DCB #7F64CB

triadic

#647DCB #CB647D #7DCB64

tetradic

#647DCB #CB64B1 #CBB264 #64CB7F

square

#647DCB #CB64B1 #CBB264 #64CB7F

split-complementary

#647DCB #CB7F64 #B1CB64

monochromatic

#2D4387 #3D5AB5 #647DCB #92A3DA #C0CAEA

Accessibility & contrast

On white

3.93

#647DCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#647DCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DCB

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DCB	#FFFFFF	#000000	##000000
##647DCB	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E85CE

Deuteranopia (green-blind)

#537CC9

Tritanopia (blue-blind)

#368E9A

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #647dcb;
/* rgb */ color: rgb(100, 125, 203);
/* oklch */ color: oklch(60.5% 0.122 269.1);

Tailwind

colors: {
  custom: {
    50: '#96a2db',
    500: '#647dcb',
    950: '#000000',
  },
}

SCSS

$custom: #647dcb;
$custom-light: #96a2db;
$custom-dark: #000000;

JSON

{
  "hex": "#647dcb",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 203
  },
  "hsl": {
    "h": 225.437,
    "s": 49.758,
    "l": 59.412
  },
  "oklch": {
    "l": 0.60533,
    "c": 0.12244,
    "h": 269.1
  },
  "luminance": 0.21688
}

Semantic roles & 50–950 ramp

primary

#647DCB

secondary

#D9D0B1

accent

#B84FD9

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0F15

muted

#7E7E83

Preview Lab

Preview with #647DCB

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

Preview Lab → · Contrast checker → · Palette generator →