#505BBF#505BBF

#505BBF is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.6% C 0.155 H 274.9°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#505BBF
RGB	rgb(80, 91, 191)
HSL	hsl(234, 46%, 53%)
HSV	hsv(234, 58%, 75%)
CMYK	cmyk(58.1%, 52.4%, 0%, 25.1%)
CIE-LAB	lab(42.68, 25.69, -54.05)
CIE-LCH	lch(42.68, 59.85, 295.42°)
OKLab	oklab(51.59% 0.0131 -0.1547)
OKLCH	oklch(51.59% 0.155 274.9)
XYZ	xyz(16.4503, 12.9480, 50.9125)
Luminance	0.1295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505BBF #BFB450

analogous

#5092BF #505BBF #7C50BF

triadic

#505BBF #BF505B #5BBF50

tetradic

#505BBF #BF5092 #BFB450 #50BF7C

square

#505BBF #BF5092 #BFB450 #50BF7C

split-complementary

#505BBF #BF7C50 #92BF50

monochromatic

#282F6D #38429A #505BBF #7D85CF #AAAFE0

Accessibility & contrast

On white

5.85

#505BBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#505BBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505BBF

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505BBF	#FFFFFF	#000000	##FFFFFF
##505BBF	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#216AC3

Deuteranopia (green-blind)

#0260BD

Tritanopia (blue-blind)

#007284

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #505bbf;
/* rgb */ color: rgb(80, 91, 191);
/* oklch */ color: oklch(51.6% 0.155 274.9);

Tailwind

colors: {
  custom: {
    50: '#8b89d3',
    500: '#505bbf',
    950: '#000000',
  },
}

SCSS

$custom: #505bbf;
$custom-light: #8b89d3;
$custom-dark: #000000;

JSON

{
  "hex": "#505bbf",
  "rgb": {
    "r": 80,
    "g": 91,
    "b": 191
  },
  "hsl": {
    "h": 234.054,
    "s": 46.444,
    "l": 53.137
  },
  "oklch": {
    "l": 0.51586,
    "c": 0.15529,
    "h": 274.9
  },
  "luminance": 0.12949
}

Semantic roles & 50–950 ramp

primary

#505BBF

secondary

#CDC99D

accent

#C952D6

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #505BBF

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

Preview Lab → · Contrast checker → · Palette generator →