#505DCB#505DCB

#505DCB is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.8% C 0.169 H 274.0°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#505DCB
RGB	rgb(80, 93, 203)
HSL	hsl(234, 54%, 55%)
HSV	hsv(234, 61%, 80%)
CMYK	cmyk(60.6%, 54.2%, 0%, 20.4%)
CIE-LAB	lab(44.01, 28.46, -58.86)
CIE-LCH	lch(44.01, 65.38, 295.81°)
OKLab	oklab(52.84% 0.0119 -0.1688)
OKLCH	oklch(52.84% 0.169 274)
XYZ	xyz(17.9986, 13.8445, 58.2121)
Luminance	0.1385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505DCB #CBBE50

analogous

#509ACB #505DCB #8150CB

triadic

#505DCB #CB505D #5DCB50

tetradic

#505DCB #CB509A #CBBE50 #50CB81

square

#505DCB #CB509A #CBBE50 #50CB81

split-complementary

#505DCB #CB8150 #9ACB50

monochromatic

#252E7C #3340AB #505DCB #7F89D9 #AEB4E7

Accessibility & contrast

On white

5.57

#505DCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#505DCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505DCB

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505DCB	#FFFFFF	#000000	##FFFFFF
##505DCB	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#106ECF

Deuteranopia (green-blind)

#0063C9

Tritanopia (blue-blind)

#00778B

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #505dcb;
/* rgb */ color: rgb(80, 93, 203);
/* oklch */ color: oklch(52.8% 0.169 274.0);

Tailwind

colors: {
  custom: {
    50: '#8c8adc',
    500: '#505dcb',
    950: '#000000',
  },
}

SCSS

$custom: #505dcb;
$custom-light: #8c8adc;
$custom-dark: #000000;

JSON

{
  "hex": "#505dcb",
  "rgb": {
    "r": 80,
    "g": 93,
    "b": 203
  },
  "hsl": {
    "h": 233.659,
    "s": 54.185,
    "l": 55.49
  },
  "oklch": {
    "l": 0.52838,
    "c": 0.16927,
    "h": 274
  },
  "luminance": 0.13846
}

Semantic roles & 50–950 ramp

primary

#505DCB

secondary

#D5D0A2

accent

#CE4ADE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #505DCB

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

Preview Lab → · Contrast checker → · Palette generator →