#647FAC#647FAC

#647FAC is a mid, moderate blue. Relative luminance 0.209; OKLCH L 59.4% C 0.076 H 260.4°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#647FAC
RGB	rgb(100, 127, 172)
HSL	hsl(218, 30%, 53%)
HSV	hsv(218, 42%, 67%)
CMYK	cmyk(41.9%, 26.2%, 0%, 32.5%)
CIE-LAB	lab(52.80, 2.26, -26.94)
CIE-LCH	lch(52.80, 27.04, 274.80°)
OKLab	oklab(59.37% -0.0127 -0.075)
OKLCH	oklch(59.37% 0.076 260.4)
XYZ	xyz(20.2889, 20.8655, 41.9801)
Luminance	0.2087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FAC #AC9164

analogous

#64A3AC #647FAC #6D64AC

triadic

#647FAC #AC647F #7FAC64

tetradic

#647FAC #AC64A3 #AC9164 #64AC6D

square

#647FAC #AC64A3 #AC9164 #64AC6D

split-complementary

#647FAC #AC6D64 #A3AC64

monochromatic

#344561 #4A6189 #647FAC #8CA0C1 #B4C1D7

Accessibility & contrast

On white

4.06

#647FAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#647FAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FAC

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FAC	#FFFFFF	#000000	##000000
##647FAC	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F82AE

Deuteranopia (green-blind)

#677BAB

Tritanopia (blue-blind)

#4B898F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647fac;
/* rgb */ color: rgb(100, 127, 172);
/* oklch */ color: oklch(59.4% 0.076 260.4);

Tailwind

colors: {
  custom: {
    50: '#93a4c5',
    500: '#647fac',
    950: '#000000',
  },
}

SCSS

$custom: #647fac;
$custom-light: #93a4c5;
$custom-dark: #000000;

JSON

{
  "hex": "#647fac",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 172
  },
  "hsl": {
    "h": 217.5,
    "s": 30.252,
    "l": 53.333
  },
  "oklch": {
    "l": 0.59366,
    "c": 0.0761,
    "h": 260.4
  },
  "luminance": 0.20867
}

Semantic roles & 50–950 ramp

primary

#647FAC

secondary

#C5BAA6

accent

#A161C6

background

#F9FAFC

surface

#F1F3F8

border

#CBCDD1

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #647FAC

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

Preview Lab → · Contrast checker → · Palette generator →