#5179CC#5179CC

#5179CC is a mid, vivid blue. Relative luminance 0.198; OKLCH L 58.6% C 0.135 H 263.4°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#5179CC
RGB	rgb(81, 121, 204)
HSL	hsl(220, 55%, 56%)
HSV	hsv(220, 60%, 80%)
CMYK	cmyk(60.3%, 40.7%, 0%, 20%)
CIE-LAB	lab(51.59, 11.54, -47.27)
CIE-LCH	lch(51.59, 48.66, 283.72°)
OKLab	oklab(58.65% -0.0156 -0.1344)
OKLCH	oklch(58.65% 0.135 263.4)
XYZ	xyz(21.1260, 19.7819, 59.8200)
Luminance	0.1978 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5179CC #CCA451

analogous

#51B6CC #5179CC #6651CC

triadic

#5179CC #CC5179 #79CC51

tetradic

#5179CC #CC51B6 #CCA451 #51CC66

square

#5179CC #CC51B6 #CCA451 #51CC66

split-complementary

#5179CC #CC6651 #B6CC51

monochromatic

#25427E #335BAD #5179CC #809DDA #B0C2E8

Accessibility & contrast

On white

4.24

#5179CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#5179CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5179CC

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5179CC	#FFFFFF	#000000	##000000
##5179CC	1.00	4.24	4.96	4.96
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5581CF

Deuteranopia (green-blind)

#4476CA

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5179cc;
/* rgb */ color: rgb(81, 121, 204);
/* oklch */ color: oklch(58.6% 0.135 263.4);

Tailwind

colors: {
  custom: {
    50: '#8c9fdc',
    500: '#5179cc',
    950: '#000000',
  },
}

SCSS

$custom: #5179cc;
$custom-light: #8c9fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#5179cc",
  "rgb": {
    "r": 81,
    "g": 121,
    "b": 204
  },
  "hsl": {
    "h": 220.488,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.58645,
    "c": 0.13534,
    "h": 263.4
  },
  "luminance": 0.19784
}

Semantic roles & 50–950 ramp

primary

#5179CC

secondary

#D6C5A3

accent

#AE4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5179CC

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

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