#515BD4#515BD4

#515BD4 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 53.2% C 0.184 H 274.7°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#515BD4
RGB	rgb(81, 91, 212)
HSL	hsl(235, 60%, 57%)
HSV	hsv(235, 62%, 83%)
CMYK	cmyk(61.8%, 57.1%, 0%, 16.9%)
CIE-LAB	lab(44.21, 32.90, -63.70)
CIE-LCH	lch(44.21, 71.70, 297.32°)
OKLab	oklab(53.21% 0.0151 -0.1831)
OKLCH	oklch(53.21% 0.184 274.7)
XYZ	xyz(19.0142, 13.9834, 63.9717)
Luminance	0.1399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BD4 #D4CA51

analogous

#519CD4 #515BD4 #8951D4

triadic

#515BD4 #D4515B #5BD451

tetradic

#515BD4 #D4519C #D4CA51 #51D489

square

#515BD4 #D4519C #D4CA51 #51D489

split-complementary

#515BD4 #D48951 #9CD451

monochromatic

#222A89 #2E39BA #515BD4 #8289E0 #B3B8EC

Accessibility & contrast

On white

5.53

#515BD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#515BD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BD4

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BD4	#FFFFFF	#000000	##FFFFFF
##515BD4	1.00	5.53	3.80	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED8

Deuteranopia (green-blind)

#0063D2

Tritanopia (blue-blind)

#00788F

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #515bd4;
/* rgb */ color: rgb(81, 91, 212);
/* oklch */ color: oklch(53.2% 0.184 274.7);

Tailwind

colors: {
  custom: {
    50: '#8f89e2',
    500: '#515bd4',
    950: '#000000',
  },
}

SCSS

$custom: #515bd4;
$custom-light: #8f89e2;
$custom-dark: #000000;

JSON

{
  "hex": "#515bd4",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 212
  },
  "hsl": {
    "h": 235.42,
    "s": 60.369,
    "l": 57.451
  },
  "oklch": {
    "l": 0.53206,
    "c": 0.18371,
    "h": 274.7
  },
  "luminance": 0.13985
}

Semantic roles & 50–950 ramp

primary

#515BD4

secondary

#DBD7A6

accent

#D744E4

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #515BD4

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

Preview Lab → · Contrast checker → · Palette generator →