#515FDB#515FDB

#515FDB is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.5% C 0.188 H 273.5°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#515FDB
RGB	rgb(81, 95, 219)
HSL	hsl(234, 66%, 59%)
HSV	hsv(234, 63%, 86%)
CMYK	cmyk(63%, 56.6%, 0%, 14.1%)
CIE-LAB	lab(45.70, 32.78, -65.28)
CIE-LCH	lch(45.70, 73.05, 296.66°)
OKLab	oklab(54.47% 0.0116 -0.1877)
OKLCH	oklch(54.47% 0.188 273.5)
XYZ	xyz(20.2675, 15.0465, 68.8403)
Luminance	0.1505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FDB #DBCD51

analogous

#51A4DB #515FDB #8851DB

triadic

#515FDB #DB515F #5FDB51

tetradic

#515FDB #DB51A4 #DBCD51 #51DB88

square

#515FDB #DB51A4 #DBCD51 #51DB88

split-complementary

#515FDB #DB8851 #A4DB51

monochromatic

#1E2A93 #2939C6 #515FDB #848EE5 #B6BCF0

Accessibility & contrast

On white

5.24

#515FDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#515FDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FDB

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FDB	#FFFFFF	#000000	##FFFFFF
##515FDB	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072DF

Deuteranopia (green-blind)

#0066D9

Tritanopia (blue-blind)

#007D94

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #515fdb;
/* rgb */ color: rgb(81, 95, 219);
/* oklch */ color: oklch(54.5% 0.188 273.5);

Tailwind

colors: {
  custom: {
    50: '#908ce7',
    500: '#515fdb',
    950: '#000000',
  },
}

SCSS

$custom: #515fdb;
$custom-light: #908ce7;
$custom-dark: #000000;

JSON

{
  "hex": "#515fdb",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 219
  },
  "hsl": {
    "h": 233.913,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.54473,
    "c": 0.18805,
    "h": 273.5
  },
  "luminance": 0.15048
}

Semantic roles & 50–950 ramp

primary

#515FDB

secondary

#DFDAA9

accent

#D73FE9

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #515FDB

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

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