#503DB5#503DB5

#503DB5 is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.5% C 0.181 H 283.8°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#503DB5
RGB	rgb(80, 61, 181)
HSL	hsl(250, 50%, 47%)
HSV	hsv(250, 66%, 71%)
CMYK	cmyk(55.8%, 66.3%, 0%, 29%)
CIE-LAB	lab(34.76, 40.89, -61.04)
CIE-LCH	lch(34.76, 73.47, 303.82°)
OKLab	oklab(45.5% 0.0431 -0.1755)
OKLCH	oklch(45.5% 0.181 283.8)
XYZ	xyz(13.3150, 8.3784, 44.6227)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.41

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#503DB5 #A2B53D

analogous

#3D66B5 #503DB5 #8C3DB5

triadic

#503DB5 #B5503D #3DB550

tetradic

#503DB5 #B53D66 #A2B53D #3DB58C

square

#503DB5 #B53D66 #A2B53D #3DB58C

split-complementary

#503DB5 #B58C3D #66B53D

monochromatic

#281E59 #3C2E87 #503DB5 #7564CB #9E92DA

Accessibility & contrast

On white

7.85

#503DB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#503DB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #503DB5

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##503DB5	#FFFFFF	#000000	##FFFFFF
##503DB5	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B9

Deuteranopia (green-blind)

#004EB3

Tritanopia (blue-blind)

#205B74

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #503db5;
/* rgb */ color: rgb(80, 61, 181);
/* oklch */ color: oklch(45.5% 0.181 283.8);

Tailwind

colors: {
  custom: {
    50: '#8b74cc',
    500: '#503db5',
    950: '#000000',
  },
}

SCSS

$custom: #503db5;
$custom-light: #8b74cc;
$custom-dark: #000000;

JSON

{
  "hex": "#503db5",
  "rgb": {
    "r": 80,
    "g": 61,
    "b": 181
  },
  "hsl": {
    "h": 249.5,
    "s": 49.587,
    "l": 47.451
  },
  "oklch": {
    "l": 0.455,
    "c": 0.18069,
    "h": 283.8
  },
  "luminance": 0.08379
}

Semantic roles & 50–950 ramp

primary

#503DB5

secondary

#BCC588

accent

#D94FC3

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0813

muted

#7E7B82

Preview Lab

Preview with #503DB5

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

Preview Lab → · Contrast checker → · Palette generator →