#515DDB#515DDB

#515DDB is a mid, vivid blue. Relative luminance 0.147; OKLCH L 54.1% C 0.191 H 274.0°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#515DDB
RGB	rgb(81, 93, 219)
HSL	hsl(235, 66%, 59%)
HSV	hsv(235, 63%, 86%)
CMYK	cmyk(63%, 57.5%, 0%, 14.1%)
CIE-LAB	lab(45.21, 34.01, -66.08)
CIE-LCH	lch(45.21, 74.32, 297.24°)
OKLab	oklab(54.11% 0.0134 -0.19)
OKLCH	oklch(54.11% 0.191 274)
XYZ	xyz(20.0896, 14.6908, 68.7810)
Luminance	0.1469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DDB #DBCF51

analogous

#51A2DB #515DDB #8A51DB

triadic

#515DDB #DB515D #5DDB51

tetradic

#515DDB #DB51A2 #DBCF51 #51DB8A

square

#515DDB #DB51A2 #DBCF51 #51DB8A

split-complementary

#515DDB #DB8A51 #A2DB51

monochromatic

#1E2993 #2937C6 #515DDB #848CE5 #B6BBF0

Accessibility & contrast

On white

5.33

#515DDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#515DDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DDB

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DDB	#FFFFFF	#000000	##FFFFFF
##515DDB	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DF

Deuteranopia (green-blind)

#0065D8

Tritanopia (blue-blind)

#007C93

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #515ddb;
/* rgb */ color: rgb(81, 93, 219);
/* oklch */ color: oklch(54.1% 0.191 274.0);

Tailwind

colors: {
  custom: {
    50: '#908ae7',
    500: '#515ddb',
    950: '#000000',
  },
}

SCSS

$custom: #515ddb;
$custom-light: #908ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#515ddb",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 219
  },
  "hsl": {
    "h": 234.783,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.54109,
    "c": 0.19052,
    "h": 274
  },
  "luminance": 0.14693
}

Semantic roles & 50–950 ramp

primary

#515DDB

secondary

#DFDAA9

accent

#DA3FE9

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #515DDB

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

Preview Lab → · Contrast checker → · Palette generator →