#5155D9#5155D9

#5155D9 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.5% C 0.198 H 275.9°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#5155D9
RGB	rgb(81, 85, 217)
HSL	hsl(238, 64%, 58%)
HSV	hsv(238, 63%, 85%)
CMYK	cmyk(62.7%, 60.8%, 0%, 14.9%)
CIE-LAB	lab(43.14, 38.25, -68.29)
CIE-LCH	lch(43.14, 78.27, 299.25°)
OKLab	oklab(52.54% 0.0203 -0.1966)
OKLCH	oklch(52.54% 0.198 275.9)
XYZ	xyz(19.1621, 13.2545, 67.1808)
Luminance	0.1326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155D9 #D9D551

analogous

#5199D9 #5155D9 #9151D9

triadic

#5155D9 #D95155 #55D951

tetradic

#5155D9 #D95199 #D9D551 #51D991

square

#5155D9 #D95199 #D9D551 #51D991

split-complementary

#5155D9 #D99151 #99D951

monochromatic

#1F2390 #2A2FC2 #5155D9 #8386E4 #B5B7EF

Accessibility & contrast

On white

5.75

#5155D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#5155D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155D9

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155D9	#FFFFFF	#000000	##FFFFFF
##5155D9	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CDD

Deuteranopia (green-blind)

#0060D6

Tritanopia (blue-blind)

#00768F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5155d9;
/* rgb */ color: rgb(81, 85, 217);
/* oklch */ color: oklch(52.5% 0.198 275.9);

Tailwind

colors: {
  custom: {
    50: '#9085e6',
    500: '#5155d9',
    950: '#000000',
  },
}

SCSS

$custom: #5155d9;
$custom-light: #9085e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5155d9",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 217
  },
  "hsl": {
    "h": 238.235,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.52535,
    "c": 0.19767,
    "h": 275.9
  },
  "luminance": 0.13256
}

Semantic roles & 50–950 ramp

primary

#5155D9

secondary

#DEDCA8

accent

#E241E7

background

#F9F8FE

surface

#F2EFFC

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5155D9

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

Preview Lab → · Contrast checker → · Palette generator →