#5170CC#5170CC

#5170CC is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.8% C 0.146 H 267.6°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#5170CC
RGB	rgb(81, 112, 204)
HSL	hsl(225, 55%, 56%)
HSV	hsv(225, 60%, 80%)
CMYK	cmyk(60.3%, 45.1%, 0%, 20%)
CIE-LAB	lab(49.12, 17.10, -51.20)
CIE-LCH	lch(49.12, 53.98, 288.46°)
OKLab	oklab(56.75% -0.0061 -0.1461)
OKLCH	oklch(56.75% 0.146 267.6)
XYZ	xyz(20.0829, 17.6956, 59.4723)
Luminance	0.1770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170CC #CCAD51

analogous

#51ADCC #5170CC #6F51CC

triadic

#5170CC #CC5170 #70CC51

tetradic

#5170CC #CC51AD #CCAD51 #51CC6F

square

#5170CC #CC51AD #CCAD51 #51CC6F

split-complementary

#5170CC #CC6F51 #ADCC51

monochromatic

#253B7E #3352AD #5170CC #8097DA #B0BEE8

Accessibility & contrast

On white

4.63

#5170CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#5170CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5170CC

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170CC	#FFFFFF	#000000	##FFFFFF
##5170CC	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#457BCF

Deuteranopia (green-blind)

#3270CA

Tritanopia (blue-blind)

#008594

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #5170cc;
/* rgb */ color: rgb(81, 112, 204);
/* oklch */ color: oklch(56.8% 0.146 267.6);

Tailwind

colors: {
  custom: {
    50: '#8c98dc',
    500: '#5170cc',
    950: '#000000',
  },
}

SCSS

$custom: #5170cc;
$custom-light: #8c98dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5170cc",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 204
  },
  "hsl": {
    "h": 224.878,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.5675,
    "c": 0.14621,
    "h": 267.6
  },
  "luminance": 0.17697
}

Semantic roles & 50–950 ramp

primary

#5170CC

secondary

#D6C9A3

accent

#B94ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #5170CC

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

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