#5159DB#5159DB

#5159DB is a mid, vivid blue. Relative luminance 0.140; OKLCH L 53.4% C 0.195 H 274.9°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#5159DB
RGB	rgb(81, 89, 219)
HSL	hsl(237, 66%, 59%)
HSV	hsv(237, 63%, 86%)
CMYK	cmyk(63%, 59.4%, 0%, 14.1%)
CIE-LAB	lab(44.24, 36.47, -67.64)
CIE-LCH	lch(44.24, 76.85, 298.33°)
OKLab	oklab(53.39% 0.0168 -0.1947)
OKLCH	oklch(53.39% 0.195 274.9)
XYZ	xyz(19.7477, 14.0069, 68.6670)
Luminance	0.1401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5159DB #DBD351

analogous

#519EDB #5159DB #8E51DB

triadic

#5159DB #DB5159 #59DB51

tetradic

#5159DB #DB519E #DBD351 #51DB8E

square

#5159DB #DB519E #DBD351 #51DB8E

split-complementary

#5159DB #DB8E51 #9EDB51

monochromatic

#1E2593 #2932C6 #5159DB #8489E5 #B6BAF0

Accessibility & contrast

On white

5.52

#5159DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#5159DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5159DB

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5159DB	#FFFFFF	#000000	##FFFFFF
##5159DB	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FDF

Deuteranopia (green-blind)

#0063D8

Tritanopia (blue-blind)

#007991

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #5159db;
/* rgb */ color: rgb(81, 89, 219);
/* oklch */ color: oklch(53.4% 0.195 274.9);

Tailwind

colors: {
  custom: {
    50: '#9088e7',
    500: '#5159db',
    950: '#000000',
  },
}

SCSS

$custom: #5159db;
$custom-light: #9088e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5159db",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 219
  },
  "hsl": {
    "h": 236.522,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.53393,
    "c": 0.19543,
    "h": 274.9
  },
  "luminance": 0.14009
}

Semantic roles & 50–950 ramp

primary

#5159DB

secondary

#DFDCA9

accent

#DF3FE9

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5159DB

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

Preview Lab → · Contrast checker → · Palette generator →