#5153B0#5153B0

#5153B0 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.0% C 0.145 H 278.7°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#5153B0
RGB	rgb(81, 83, 176)
HSL	hsl(239, 38%, 50%)
HSV	hsv(239, 54%, 69%)
CMYK	cmyk(54%, 52.8%, 0%, 31%)
CIE-LAB	lab(39.70, 25.98, -50.07)
CIE-LCH	lch(39.70, 56.41, 297.43°)
OKLab	oklab(49.04% 0.0219 -0.1431)
OKLCH	oklch(49.04% 0.145 278.7)
XYZ	xyz(14.3206, 11.0695, 42.4479)
Luminance	0.1107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5153B0 #B0AE51

analogous

#5182B0 #5153B0 #7E51B0

triadic

#5153B0 #B05153 #53B051

tetradic

#5153B0 #B05182 #B0AE51 #51B07E

square

#5153B0 #B05182 #B0AE51 #51B07E

split-complementary

#5153B0 #B07E51 #82B051

monochromatic

#2A2B5D #3D3F87 #5153B0 #7B7DC3 #A5A6D6

Accessibility & contrast

On white

6.53

#5153B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#5153B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5153B0

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5153B0	#FFFFFF	#000000	##FFFFFF
##5153B0	1.00	6.53	3.21	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2061B3

Deuteranopia (green-blind)

#115AAE

Tritanopia (blue-blind)

#266879

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #5153b0;
/* rgb */ color: rgb(81, 83, 176);
/* oklch */ color: oklch(49.0% 0.145 278.7);

Tailwind

colors: {
  custom: {
    50: '#8983c8',
    500: '#5153b0',
    950: '#000000',
  },
}

SCSS

$custom: #5153b0;
$custom-light: #8983c8;
$custom-dark: #000000;

JSON

{
  "hex": "#5153b0",
  "rgb": {
    "r": 81,
    "g": 83,
    "b": 176
  },
  "hsl": {
    "h": 238.737,
    "s": 37.549,
    "l": 50.392
  },
  "oklch": {
    "l": 0.49042,
    "c": 0.14473,
    "h": 278.7
  },
  "luminance": 0.1107
}

Semantic roles & 50–950 ramp

primary

#5153B0

secondary

#C4C399

accent

#CB5ACE

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0C0A13

muted

#7D7C82

Preview Lab

Preview with #5153B0

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

Preview Lab → · Contrast checker → · Palette generator →