#5155BF#5155BF

#5155BF is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.5% C 0.163 H 277.2°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#5155BF
RGB	rgb(81, 85, 191)
HSL	hsl(238, 46%, 53%)
HSV	hsv(238, 58%, 75%)
CMYK	cmyk(57.6%, 55.5%, 0%, 25.1%)
CIE-LAB	lab(41.23, 29.66, -56.40)
CIE-LCH	lch(41.23, 63.72, 297.73°)
OKLab	oklab(50.51% 0.0205 -0.1617)
OKLCH	oklch(50.51% 0.163 277.2)
XYZ	xyz(16.0428, 12.0068, 50.7523)
Luminance	0.1201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155BF #BFBB51

analogous

#518CBF #5155BF #8451BF

triadic

#5155BF #BF5155 #55BF51

tetradic

#5155BF #BF518C #BFBB51 #51BF84

square

#5155BF #BF518C #BFBB51 #51BF84

split-complementary

#5155BF #BF8451 #8CBF51

monochromatic

#282B6D #393C9A #5155BF #7E81CF #AAACE0

Accessibility & contrast

On white

6.17

#5155BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#5155BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155BF

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155BF	#FFFFFF	#000000	##FFFFFF
##5155BF	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0566C3

Deuteranopia (green-blind)

#005DBD

Tritanopia (blue-blind)

#0B6E82

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #5155bf;
/* rgb */ color: rgb(81, 85, 191);
/* oklch */ color: oklch(50.5% 0.163 277.2);

Tailwind

colors: {
  custom: {
    50: '#8b85d3',
    500: '#5155bf',
    950: '#000000',
  },
}

SCSS

$custom: #5155bf;
$custom-light: #8b85d3;
$custom-dark: #000000;

JSON

{
  "hex": "#5155bf",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 191
  },
  "hsl": {
    "h": 237.818,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.50511,
    "c": 0.16297,
    "h": 277.2
  },
  "luminance": 0.12008
}

Semantic roles & 50–950 ramp

primary

#5155BF

secondary

#CECC9E

accent

#D152D6

background

#F9F8FD

surface

#F1EFFA

border

#CBCAD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #5155BF

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

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