#6557EB#6557EB

#6557EB is a mid, highly saturated blue. Relative luminance 0.156; OKLCH L 55.7% C 0.214 H 281.1°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#6557EB
RGB	rgb(101, 87, 235)
HSL	hsl(246, 79%, 63%)
HSV	hsv(246, 63%, 92%)
CMYK	cmyk(57%, 63%, 0%, 7.8%)
CIE-LAB	lab(46.42, 45.95, -73.11)
CIE-LCH	lch(46.42, 86.35, 302.15°)
OKLab	oklab(55.73% 0.0414 -0.2102)
OKLCH	oklch(55.73% 0.214 281.1)
XYZ	xyz(23.7657, 15.5797, 80.3360)
Luminance	0.1558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6557EB #DDEB57

analogous

#5793EB #6557EB #AF57EB

triadic

#6557EB #EB6557 #57EB65

tetradic

#6557EB #EB5793 #DDEB57 #57EBAF

square

#6557EB #EB5793 #DDEB57 #57EBAF

split-complementary

#6557EB #EBAF57 #93EB57

monochromatic

#2415B2 #3320E4 #6557EB #978EF2 #C9C4F8

Accessibility & contrast

On white

5.10

#6557EB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#6557EB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6557EB

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6557EB	#FFFFFF	#000000	##FFFFFF
##6557EB	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073F0

Deuteranopia (green-blind)

#0069E8

Tritanopia (blue-blind)

#157C99

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #6557eb;
/* rgb */ color: rgb(101, 87, 235);
/* oklch */ color: oklch(55.7% 0.214 281.1);

Tailwind

colors: {
  custom: {
    50: '#9d87f2',
    500: '#6557eb',
    950: '#000000',
  },
}

SCSS

$custom: #6557eb;
$custom-light: #9d87f2;
$custom-dark: #000000;

JSON

{
  "hex": "#6557eb",
  "rgb": {
    "r": 101,
    "g": 87,
    "b": 235
  },
  "hsl": {
    "h": 245.676,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.55732,
    "c": 0.21425,
    "h": 281.1
  },
  "luminance": 0.15581
}

Semantic roles & 50–950 ramp

primary

#6557EB

secondary

#E4E9B4

accent

#DB0AC7

background

#FAF8FE

surface

#F4EFFD

border

#CECAD5

text

#100B17

muted

#7F7C85

Preview Lab

Preview with #6557EB

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

Preview Lab → · Contrast checker → · Palette generator →