#6557AF#6557AF

#6557AF is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.4% C 0.135 H 288.0°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#6557AF
RGB	rgb(101, 87, 175)
HSL	hsl(250, 35%, 51%)
HSV	hsv(250, 50%, 69%)
CMYK	cmyk(42.3%, 50.3%, 0%, 31.4%)
CIE-LAB	lab(42.27, 27.80, -45.26)
CIE-LCH	lch(42.27, 53.12, 301.56°)
OKLab	oklab(51.36% 0.0417 -0.1284)
OKLCH	oklch(51.36% 0.135 288)
XYZ	xyz(16.5107, 12.6777, 42.1262)
Luminance	0.1268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6557AF #A1AF57

analogous

#5775AF #6557AF #9157AF

triadic

#6557AF #AF6557 #57AF65

tetradic

#6557AF #AF5775 #A1AF57 #57AF91

square

#6557AF #AF5775 #A1AF57 #57AF91

split-complementary

#6557AF #AF9157 #75AF57

monochromatic

#352D5F #4C4188 #6557AF #8B80C3 #B1AAD6

Accessibility & contrast

On white

5.94

#6557AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#6557AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6557AF

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6557AF	#FFFFFF	#000000	##FFFFFF
##6557AF	1.00	5.94	3.54	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3266B2

Deuteranopia (green-blind)

#3262AD

Tritanopia (blue-blind)

#50697B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #6557af;
/* rgb */ color: rgb(101, 87, 175);
/* oklch */ color: oklch(51.4% 0.135 288.0);

Tailwind

colors: {
  custom: {
    50: '#9586c7',
    500: '#6557af',
    950: '#000000',
  },
}

SCSS

$custom: #6557af;
$custom-light: #9586c7;
$custom-dark: #000000;

JSON

{
  "hex": "#6557af",
  "rgb": {
    "r": 101,
    "g": 87,
    "b": 175
  },
  "hsl": {
    "h": 249.545,
    "s": 35.484,
    "l": 51.373
  },
  "oklch": {
    "l": 0.51358,
    "c": 0.13496,
    "h": 288
  },
  "luminance": 0.12678
}

Semantic roles & 50–950 ramp

primary

#6557AF

secondary

#BEC49E

accent

#CC5CBA

background

#F9F8FC

surface

#F2EFF8

border

#CCCAD1

text

#0E0B13

muted

#7E7C82

Preview Lab

Preview with #6557AF

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

Preview Lab → · Contrast checker → · Palette generator →