#5165DB#5165DB

#5165DB is a mid, vivid blue. Relative luminance 0.162; OKLCH L 55.6% C 0.181 H 272.0°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#5165DB
RGB	rgb(81, 101, 219)
HSL	hsl(231, 66%, 59%)
HSV	hsv(231, 63%, 86%)
CMYK	cmyk(63%, 53.9%, 0%, 14.1%)
CIE-LAB	lab(47.20, 29.05, -62.85)
CIE-LCH	lch(47.20, 69.24, 294.81°)
OKLab	oklab(55.59% 0.0062 -0.1805)
OKLCH	oklch(55.59% 0.181 272)
XYZ	xyz(20.8289, 16.1694, 69.0274)
Luminance	0.1617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5165DB #DBC751

analogous

#51AADB #5165DB #8251DB

triadic

#5165DB #DB5165 #65DB51

tetradic

#5165DB #DB51AA #DBC751 #51DB82

square

#5165DB #DB51AA #DBC751 #51DB82

split-complementary

#5165DB #DB8251 #AADB51

monochromatic

#1E2F93 #2940C6 #5165DB #8492E5 #B6BFF0

Accessibility & contrast

On white

4.96

#5165DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#5165DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5165DB

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5165DB	#FFFFFF	#000000	##FFFFFF
##5165DB	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E76DF

Deuteranopia (green-blind)

#006AD9

Tritanopia (blue-blind)

#008196

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #5165db;
/* rgb */ color: rgb(81, 101, 219);
/* oklch */ color: oklch(55.6% 0.181 272.0);

Tailwind

colors: {
  custom: {
    50: '#8f90e7',
    500: '#5165db',
    950: '#000000',
  },
}

SCSS

$custom: #5165db;
$custom-light: #8f90e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5165db",
  "rgb": {
    "r": 81,
    "g": 101,
    "b": 219
  },
  "hsl": {
    "h": 231.304,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.55594,
    "c": 0.1806,
    "h": 272
  },
  "luminance": 0.16171
}

Semantic roles & 50–950 ramp

primary

#5165DB

secondary

#DFD7A9

accent

#D03FE9

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5165DB

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

Preview Lab → · Contrast checker → · Palette generator →