#5155BC#5155BC

#5155BC is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.3% C 0.159 H 277.4°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#5155BC
RGB	rgb(81, 85, 188)
HSL	hsl(238, 44%, 53%)
HSV	hsv(238, 57%, 74%)
CMYK	cmyk(56.9%, 54.8%, 0%, 26.3%)
CIE-LAB	lab(41.02, 28.66, -54.99)
CIE-LCH	lch(41.02, 62.01, 297.53°)
OKLab	oklab(50.29% 0.0204 -0.1575)
OKLCH	oklch(50.29% 0.159 277.4)
XYZ	xyz(15.7160, 11.8761, 49.0314)
Luminance	0.1188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155BC #BCB851

analogous

#518ABC #5155BC #8251BC

triadic

#5155BC #BC5155 #55BC51

tetradic

#5155BC #BC518A #BCB851 #51BC82

square

#5155BC #BC518A #BCB851 #51BC82

split-complementary

#5155BC #BC8251 #8ABC51

monochromatic

#292B6A #3A3D96 #5155BC #7D80CD #A9ABDE

Accessibility & contrast

On white

6.22

#5155BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#5155BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155BC

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155BC	#FFFFFF	#000000	##FFFFFF
##5155BC	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1065C0

Deuteranopia (green-blind)

#005CBA

Tritanopia (blue-blind)

#136D80

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #5155bc;
/* rgb */ color: rgb(81, 85, 188);
/* oklch */ color: oklch(50.3% 0.159 277.4);

Tailwind

colors: {
  custom: {
    50: '#8b85d1',
    500: '#5155bc',
    950: '#000000',
  },
}

SCSS

$custom: #5155bc;
$custom-light: #8b85d1;
$custom-dark: #000000;

JSON

{
  "hex": "#5155bc",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 188
  },
  "hsl": {
    "h": 237.757,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.5029,
    "c": 0.15883,
    "h": 277.4
  },
  "luminance": 0.11877
}

Semantic roles & 50–950 ramp

primary

#5155BC

secondary

#CCCA9D

accent

#CF54D4

background

#F9F8FC

surface

#F1EFF9

border

#CBCAD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #5155BC

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

Preview Lab → · Contrast checker → · Palette generator →