#5165B2#5165B2

#5165B2 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.8% C 0.123 H 270.7°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#5165B2
RGB	rgb(81, 101, 178)
HSL	hsl(228, 39%, 51%)
HSV	hsv(228, 54%, 70%)
CMYK	cmyk(54.5%, 43.3%, 0%, 30.2%)
CIE-LAB	lab(44.62, 15.26, -43.37)
CIE-LCH	lch(44.62, 45.98, 289.38°)
OKLab	oklab(52.81% 0.0016 -0.1232)
OKLCH	oklch(52.81% 0.123 270.7)
XYZ	xyz(16.0803, 14.2699, 44.0179)
Luminance	0.1427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5165B2 #B29E51

analogous

#5195B2 #5165B2 #6D51B2

triadic

#5165B2 #B25165 #65B251

tetradic

#5165B2 #B25195 #B29E51 #51B26D

square

#5165B2 #B25195 #B29E51 #51B26D

split-complementary

#5165B2 #B26D51 #95B251

monochromatic

#2A355F #3D4C89 #5165B2 #7B8BC5 #A6B0D8

Accessibility & contrast

On white

5.45

#5165B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#5165B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5165B2

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5165B2	#FFFFFF	#000000	##FFFFFF
##5165B2	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#446EB5

Deuteranopia (green-blind)

#3966B0

Tritanopia (blue-blind)

#1F7683

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #5165b2;
/* rgb */ color: rgb(81, 101, 178);
/* oklch */ color: oklch(52.8% 0.123 270.7);

Tailwind

colors: {
  custom: {
    50: '#8990c9',
    500: '#5165b2',
    950: '#000000',
  },
}

SCSS

$custom: #5165b2;
$custom-light: #8990c9;
$custom-dark: #000000;

JSON

{
  "hex": "#5165b2",
  "rgb": {
    "r": 81,
    "g": 101,
    "b": 178
  },
  "hsl": {
    "h": 227.629,
    "s": 38.645,
    "l": 50.784
  },
  "oklch": {
    "l": 0.52812,
    "c": 0.12323,
    "h": 270.7
  },
  "luminance": 0.14271
}

Semantic roles & 50–950 ramp

primary

#5165B2

secondary

#C5BC9A

accent

#B659CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #5165B2

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

Preview Lab → · Contrast checker → · Palette generator →