#5179CB#5179CB

#5179CB is a mid, vivid blue. Relative luminance 0.197; OKLCH L 58.6% C 0.134 H 263.2°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#5179CB
RGB	rgb(81, 121, 203)
HSL	hsl(220, 54%, 56%)
HSV	hsv(220, 60%, 80%)
CMYK	cmyk(60.1%, 40.4%, 0%, 20.4%)
CIE-LAB	lab(51.54, 11.20, -46.79)
CIE-LCH	lch(51.54, 48.11, 283.46°)
OKLab	oklab(58.59% -0.0158 -0.133)
OKLCH	oklch(58.59% 0.134 263.2)
XYZ	xyz(21.0065, 19.7341, 59.1904)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5179CB #CBA351

analogous

#51B6CB #5179CB #6651CB

triadic

#5179CB #CB5179 #79CB51

tetradic

#5179CB #CB51B6 #CBA351 #51CB66

square

#5179CB #CB51B6 #CBA351 #51CB66

split-complementary

#5179CB #CB6651 #B6CB51

monochromatic

#25427C #335BAC #5179CB #809DD9 #AFC2E7

Accessibility & contrast

On white

4.24

#5179CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#5179CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5179CB

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5179CB	#FFFFFF	#000000	##000000
##5179CB	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5581CE

Deuteranopia (green-blind)

#4476C9

Tritanopia (blue-blind)

#008B98

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5179cb;
/* rgb */ color: rgb(81, 121, 203);
/* oklch */ color: oklch(58.6% 0.134 263.2);

Tailwind

colors: {
  custom: {
    50: '#8c9fdb',
    500: '#5179cb',
    950: '#000000',
  },
}

SCSS

$custom: #5179cb;
$custom-light: #8c9fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#5179cb",
  "rgb": {
    "r": 81,
    "g": 121,
    "b": 203
  },
  "hsl": {
    "h": 220.328,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.58586,
    "c": 0.13395,
    "h": 263.2
  },
  "luminance": 0.19736
}

Semantic roles & 50–950 ramp

primary

#5179CB

secondary

#D5C5A3

accent

#AD4ADD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5179CB

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

Preview Lab → · Contrast checker → · Palette generator →