#506FBC#506FBC

#506FBC is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.5% C 0.125 H 265.9°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#506FBC
RGB	rgb(80, 111, 188)
HSL	hsl(223, 45%, 53%)
HSV	hsv(223, 57%, 74%)
CMYK	cmyk(57.4%, 41%, 0%, 26.3%)
CIE-LAB	lab(47.88, 12.12, -43.99)
CIE-LCH	lch(47.88, 45.63, 285.41°)
OKLab	oklab(55.49% -0.0089 -0.1249)
OKLCH	oklch(55.49% 0.125 265.9)
XYZ	xyz(18.0667, 16.7038, 49.8393)
Luminance	0.1671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#506FBC #BC9D50

analogous

#50A5BC #506FBC #6750BC

triadic

#506FBC #BC506F #6FBC50

tetradic

#506FBC #BC50A5 #BC9D50 #50BC67

square

#506FBC #BC50A5 #BC9D50 #50BC67

split-complementary

#506FBC #BC6750 #A5BC50

monochromatic

#283B69 #395496 #506FBC #7C93CD #A9B8DE

Accessibility & contrast

On white

4.84

#506FBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#506FBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #506FBC

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##506FBC	#FFFFFF	#000000	##FFFFFF
##506FBC	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E77BF

Deuteranopia (green-blind)

#406DBA

Tritanopia (blue-blind)

#00808C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #506fbc;
/* rgb */ color: rgb(80, 111, 188);
/* oklch */ color: oklch(55.5% 0.125 265.9);

Tailwind

colors: {
  custom: {
    50: '#8998d0',
    500: '#506fbc',
    950: '#000000',
  },
}

SCSS

$custom: #506fbc;
$custom-light: #8998d0;
$custom-dark: #000000;

JSON

{
  "hex": "#506fbc",
  "rgb": {
    "r": 80,
    "g": 111,
    "b": 188
  },
  "hsl": {
    "h": 222.778,
    "s": 44.628,
    "l": 52.549
  },
  "oklch": {
    "l": 0.55488,
    "c": 0.12527,
    "h": 265.9
  },
  "luminance": 0.16705
}

Semantic roles & 50–950 ramp

primary

#506FBC

secondary

#CBBE9C

accent

#AF53D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #506FBC

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

Preview Lab → · Contrast checker → · Palette generator →