#5170CF#5170CF

#5170CF is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.9% C 0.150 H 267.8°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#5170CF
RGB	rgb(81, 112, 207)
HSL	hsl(225, 57%, 56%)
HSV	hsv(225, 61%, 81%)
CMYK	cmyk(60.9%, 45.9%, 0%, 18.8%)
CIE-LAB	lab(49.30, 18.11, -52.63)
CIE-LCH	lch(49.30, 55.66, 288.99°)
OKLab	oklab(56.94% -0.0057 -0.1503)
OKLCH	oklch(56.94% 0.15 267.8)
XYZ	xyz(20.4462, 17.8409, 61.3856)
Luminance	0.1784 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170CF #CFB051

analogous

#51AFCF #5170CF #7151CF

triadic

#5170CF #CF5170 #70CF51

tetradic

#5170CF #CF51AF #CFB051 #51CF71

square

#5170CF #CF51AF #CFB051 #51CF71

split-complementary

#5170CF #CF7151 #AFCF51

monochromatic

#243B82 #3151B2 #5170CF #8197DC #B1BFE9

Accessibility & contrast

On white

4.60

#5170CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#5170CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5170CF

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170CF	#FFFFFF	#000000	##FFFFFF
##5170CF	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#427BD3

Deuteranopia (green-blind)

#2E70CD

Tritanopia (blue-blind)

#008595

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #5170cf;
/* rgb */ color: rgb(81, 112, 207);
/* oklch */ color: oklch(56.9% 0.150 267.8);

Tailwind

colors: {
  custom: {
    50: '#8d98de',
    500: '#5170cf',
    950: '#000000',
  },
}

SCSS

$custom: #5170cf;
$custom-light: #8d98de;
$custom-dark: #000000;

JSON

{
  "hex": "#5170cf",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 207
  },
  "hsl": {
    "h": 225.238,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.56944,
    "c": 0.15039,
    "h": 267.8
  },
  "luminance": 0.17843
}

Semantic roles & 50–950 ramp

primary

#5170CF

secondary

#D8CBA4

accent

#BB48E0

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #5170CF

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

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