#5170DC#5170DC

#5170DC is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.8% C 0.168 H 268.6°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#5170DC
RGB	rgb(81, 112, 220)
HSL	hsl(227, 67%, 59%)
HSV	hsv(227, 63%, 86%)
CMYK	cmyk(63.2%, 49.1%, 0%, 13.7%)
CIE-LAB	lab(50.10, 22.55, -58.73)
CIE-LCH	lch(50.10, 62.91, 291.00°)
OKLab	oklab(57.81% -0.004 -0.1682)
OKLCH	oklch(57.81% 0.168 268.6)
XYZ	xyz(22.1014, 18.5030, 70.1030)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170DC #DCBD51

analogous

#51B5DC #5170DC #7851DC

triadic

#5170DC #DC5170 #70DC51

tetradic

#5170DC #DC51B5 #DCBD51 #51DC78

square

#5170DC #DC51B5 #DCBD51 #51DC78

split-complementary

#5170DC #DC7851 #B5DC51

monochromatic

#1E3895 #284CC8 #5170DC #849AE6 #B7C4F0

Accessibility & contrast

On white

4.47

#5170DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#5170DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5170DC

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170DC	#FFFFFF	#000000	##000000
##5170DC	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#367EE0

Deuteranopia (green-blind)

#1371DA

Tritanopia (blue-blind)

#00899B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #5170dc;
/* rgb */ color: rgb(81, 112, 220);
/* oklch */ color: oklch(57.8% 0.168 268.6);

Tailwind

colors: {
  custom: {
    50: '#8f98e7',
    500: '#5170dc',
    950: '#000000',
  },
}

SCSS

$custom: #5170dc;
$custom-light: #8f98e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5170dc",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 220
  },
  "hsl": {
    "h": 226.619,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.57808,
    "c": 0.16827,
    "h": 268.6
  },
  "luminance": 0.18505
}

Semantic roles & 50–950 ramp

primary

#5170DC

secondary

#E0D4A9

accent

#C33EE9

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5170DC

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

Preview Lab → · Contrast checker → · Palette generator →