#5171D2#5171D2

#5171D2 is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.3% C 0.153 H 267.7°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#5171D2
RGB	rgb(81, 113, 210)
HSL	hsl(225, 59%, 57%)
HSV	hsv(225, 61%, 82%)
CMYK	cmyk(61.4%, 46.2%, 0%, 17.6%)
CIE-LAB	lab(49.75, 18.51, -53.62)
CIE-LCH	lch(49.75, 56.73, 289.05°)
OKLab	oklab(57.34% -0.0062 -0.1532)
OKLCH	oklch(57.34% 0.153 267.7)
XYZ	xyz(20.9274, 18.2109, 63.3725)
Luminance	0.1821 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5171D2 #D2B251

analogous

#51B2D2 #5171D2 #7251D2

triadic

#5171D2 #D25171 #71D251

tetradic

#5171D2 #D251B2 #D2B251 #51D272

square

#5171D2 #D251B2 #D2B251 #51D272

split-complementary

#5171D2 #D27251 #B2D251

monochromatic

#233B86 #2F51B7 #5171D2 #8299DF #B2C0EB

Accessibility & contrast

On white

4.52

#5171D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#5171D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5171D2

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5171D2	#FFFFFF	#000000	##000000
##5171D2	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#427CD6

Deuteranopia (green-blind)

#2C71D0

Tritanopia (blue-blind)

#008797

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5171d2;
/* rgb */ color: rgb(81, 113, 210);
/* oklch */ color: oklch(57.3% 0.153 267.7);

Tailwind

colors: {
  custom: {
    50: '#8d99e0',
    500: '#5171d2',
    950: '#000000',
  },
}

SCSS

$custom: #5171d2;
$custom-light: #8d99e0;
$custom-dark: #000000;

JSON

{
  "hex": "#5171d2",
  "rgb": {
    "r": 81,
    "g": 113,
    "b": 210
  },
  "hsl": {
    "h": 225.116,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.57344,
    "c": 0.15331,
    "h": 267.7
  },
  "luminance": 0.18213
}

Semantic roles & 50–950 ramp

primary

#5171D2

secondary

#DACDA5

accent

#BB46E2

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #5171D2

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

Preview Lab → · Contrast checker → · Palette generator →