#515DD9#515DD9

#515DD9 is a mid, vivid blue. Relative luminance 0.146; OKLCH L 54.0% C 0.188 H 274.1°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#515DD9
RGB	rgb(81, 93, 217)
HSL	hsl(235, 64%, 58%)
HSV	hsv(235, 63%, 85%)
CMYK	cmyk(62.7%, 57.1%, 0%, 14.9%)
CIE-LAB	lab(45.06, 33.34, -65.17)
CIE-LCH	lch(45.06, 73.21, 297.09°)
OKLab	oklab(53.95% 0.0134 -0.1874)
OKLCH	oklch(53.95% 0.188 274.1)
XYZ	xyz(19.8279, 14.5861, 67.4027)
Luminance	0.1459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DD9 #D9CD51

analogous

#51A1D9 #515DD9 #8951D9

triadic

#515DD9 #D9515D #5DD951

tetradic

#515DD9 #D951A1 #D9CD51 #51D989

square

#515DD9 #D951A1 #D9CD51 #51D989

split-complementary

#515DD9 #D98951 #A1D951

monochromatic

#1F2990 #2A38C2 #515DD9 #838CE4 #B5BBEF

Accessibility & contrast

On white

5.36

#515DD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#515DD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DD9

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DD9	#FFFFFF	#000000	##FFFFFF
##515DD9	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DD

Deuteranopia (green-blind)

#0065D7

Tritanopia (blue-blind)

#007B92

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #515dd9;
/* rgb */ color: rgb(81, 93, 217);
/* oklch */ color: oklch(54.0% 0.188 274.1);

Tailwind

colors: {
  custom: {
    50: '#8f8ae6',
    500: '#515dd9',
    950: '#000000',
  },
}

SCSS

$custom: #515dd9;
$custom-light: #8f8ae6;
$custom-dark: #000000;

JSON

{
  "hex": "#515dd9",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 217
  },
  "hsl": {
    "h": 234.706,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.53954,
    "c": 0.18787,
    "h": 274.1
  },
  "luminance": 0.14588
}

Semantic roles & 50–950 ramp

primary

#515DD9

secondary

#DED9A8

accent

#D841E7

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #515DD9

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

Preview Lab → · Contrast checker → · Palette generator →