#5155DD#5155DD

#5155DD is a mid, highly saturated blue. Relative luminance 0.135; OKLCH L 52.9% C 0.203 H 275.7°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#5155DD
RGB	rgb(81, 85, 221)
HSL	hsl(238, 67%, 59%)
HSV	hsv(238, 63%, 87%)
CMYK	cmyk(63.3%, 61.5%, 0%, 13.3%)
CIE-LAB	lab(43.46, 39.57, -70.07)
CIE-LCH	lch(43.46, 80.47, 299.45°)
OKLab	oklab(52.86% 0.0201 -0.2018)
OKLCH	oklch(52.86% 0.203 275.7)
XYZ	xyz(19.6887, 13.4651, 69.9541)
Luminance	0.1347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155DD #DDD951

analogous

#519BDD #5155DD #9351DD

triadic

#5155DD #DD5155 #55DD51

tetradic

#5155DD #DD519B #DDD951 #51DD93

square

#5155DD #DD519B #DDD951 #51DD93

split-complementary

#5155DD #DD9351 #9BDD51

monochromatic

#1D2196 #272CC9 #5155DD #8487E7 #B7B9F1

Accessibility & contrast

On white

5.69

#5155DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#5155DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155DD

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155DD	#FFFFFF	#000000	##FFFFFF
##5155DD	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DE1

Deuteranopia (green-blind)

#0061DA

Tritanopia (blue-blind)

#007791

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #5155dd;
/* rgb */ color: rgb(81, 85, 221);
/* oklch */ color: oklch(52.9% 0.203 275.7);

Tailwind

colors: {
  custom: {
    50: '#9185e9',
    500: '#5155dd',
    950: '#000000',
  },
}

SCSS

$custom: #5155dd;
$custom-light: #9185e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5155dd",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 221
  },
  "hsl": {
    "h": 238.286,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.52862,
    "c": 0.20284,
    "h": 275.7
  },
  "luminance": 0.13467
}

Semantic roles & 50–950 ramp

primary

#5155DD

secondary

#E0DFAA

accent

#E53EEA

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5155DD

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

Preview Lab → · Contrast checker → · Palette generator →