#6557AD#6557AD

#6557AD is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.2% C 0.132 H 288.3°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#6557AD
RGB	rgb(101, 87, 173)
HSL	hsl(250, 34%, 51%)
HSV	hsv(250, 50%, 68%)
CMYK	cmyk(41.6%, 49.7%, 0%, 32.2%)
CIE-LAB	lab(42.15, 27.22, -44.27)
CIE-LCH	lch(42.15, 51.97, 301.58°)
OKLab	oklab(51.23% 0.0415 -0.1255)
OKLCH	oklch(51.23% 0.132 288.3)
XYZ	xyz(16.3157, 12.5997, 41.0994)
Luminance	0.1260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6557AD #9FAD57

analogous

#5774AD #6557AD #9057AD

triadic

#6557AD #AD6557 #57AD65

tetradic

#6557AD #AD5774 #9FAD57 #57AD90

square

#6557AD #AD5774 #9FAD57 #57AD90

split-complementary

#6557AD #AD9057 #74AD57

monochromatic

#352D5C #4C4186 #6557AD #8B80C1 #B0A9D5

Accessibility & contrast

On white

5.97

#6557AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#6557AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6557AD

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6557AD	#FFFFFF	#000000	##FFFFFF
##6557AD	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3465B0

Deuteranopia (green-blind)

#3461AB

Tritanopia (blue-blind)

#51697A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #6557ad;
/* rgb */ color: rgb(101, 87, 173);
/* oklch */ color: oklch(51.2% 0.132 288.3);

Tailwind

colors: {
  custom: {
    50: '#9586c6',
    500: '#6557ad',
    950: '#000000',
  },
}

SCSS

$custom: #6557ad;
$custom-light: #9586c6;
$custom-dark: #000000;

JSON

{
  "hex": "#6557ad",
  "rgb": {
    "r": 101,
    "g": 87,
    "b": 173
  },
  "hsl": {
    "h": 249.767,
    "s": 34.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.5123,
    "c": 0.13215,
    "h": 288.3
  },
  "luminance": 0.126
}

Semantic roles & 50–950 ramp

primary

#6557AD

secondary

#BDC39D

accent

#CA5DB9

background

#F9F8FC

surface

#F2EFF8

border

#CCCAD1

text

#0E0B13

muted

#7E7C82

Preview Lab

Preview with #6557AD

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

Preview Lab → · Contrast checker → · Palette generator →