#515DB7#515DB7

#515DB7 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.5% C 0.141 H 274.6°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#515DB7
RGB	rgb(81, 93, 183)
HSL	hsl(233, 41%, 52%)
HSV	hsv(233, 56%, 72%)
CMYK	cmyk(55.7%, 49.2%, 0%, 28.2%)
CIE-LAB	lab(42.76, 21.96, -49.27)
CIE-LCH	lch(42.76, 53.94, 294.03°)
OKLab	oklab(51.49% 0.0114 -0.1406)
OKLCH	oklch(51.49% 0.141 274.6)
XYZ	xyz(15.8522, 12.9958, 46.4637)
Luminance	0.1300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DB7 #B7AB51

analogous

#5190B7 #515DB7 #7851B7

triadic

#515DB7 #B7515D #5DB751

tetradic

#515DB7 #B75190 #B7AB51 #51B778

square

#515DB7 #B75190 #B7AB51 #51B778

split-complementary

#515DB7 #B77851 #90B751

monochromatic

#293064 #3B458F #515DB7 #7C85C9 #A8AEDB

Accessibility & contrast

On white

5.83

#515DB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#515DB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DB7

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DB7	#FFFFFF	#000000	##FFFFFF
##515DB7	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3169BA

Deuteranopia (green-blind)

#2361B5

Tritanopia (blue-blind)

#1A7181

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #515db7;
/* rgb */ color: rgb(81, 93, 183);
/* oklch */ color: oklch(51.5% 0.141 274.6);

Tailwind

colors: {
  custom: {
    50: '#8a8acd',
    500: '#515db7',
    950: '#000000',
  },
}

SCSS

$custom: #515db7;
$custom-light: #8a8acd;
$custom-dark: #000000;

JSON

{
  "hex": "#515db7",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 183
  },
  "hsl": {
    "h": 232.941,
    "s": 41.463,
    "l": 51.765
  },
  "oklch": {
    "l": 0.51491,
    "c": 0.14107,
    "h": 274.6
  },
  "luminance": 0.12997
}

Semantic roles & 50–950 ramp

primary

#515DB7

secondary

#C8C39C

accent

#C357D1

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #515DB7

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

Preview Lab → · Contrast checker → · Palette generator →