#515BC0#515BC0

#515BC0 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.7% C 0.156 H 275.3°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#515BC0
RGB	rgb(81, 91, 192)
HSL	hsl(235, 47%, 54%)
HSV	hsv(235, 58%, 75%)
CMYK	cmyk(57.8%, 52.6%, 0%, 24.7%)
CIE-LAB	lab(42.82, 26.22, -54.42)
CIE-LCH	lch(42.82, 60.40, 295.73°)
OKLab	oklab(51.72% 0.0143 -0.1558)
OKLCH	oklch(51.72% 0.156 275.3)
XYZ	xyz(16.6458, 13.0361, 51.4980)
Luminance	0.1304 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BC0 #C0B651

analogous

#5192C0 #515BC0 #7E51C0

triadic

#515BC0 #C0515B #5BC051

tetradic

#515BC0 #C05192 #C0B651 #51C07E

square

#515BC0 #C05192 #C0B651 #51C07E

split-complementary

#515BC0 #C07E51 #92C051

monochromatic

#282E6F #38419B #515BC0 #7E85D0 #ABB0E1

Accessibility & contrast

On white

5.82

#515BC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#515BC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BC0

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BC0	#FFFFFF	#000000	##FFFFFF
##515BC0	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#206AC4

Deuteranopia (green-blind)

#0061BE

Tritanopia (blue-blind)

#037285

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #515bc0;
/* rgb */ color: rgb(81, 91, 192);
/* oklch */ color: oklch(51.7% 0.156 275.3);

Tailwind

colors: {
  custom: {
    50: '#8b89d4',
    500: '#515bc0',
    950: '#000000',
  },
}

SCSS

$custom: #515bc0;
$custom-light: #8b89d4;
$custom-dark: #000000;

JSON

{
  "hex": "#515bc0",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 192
  },
  "hsl": {
    "h": 234.595,
    "s": 46.835,
    "l": 53.529
  },
  "oklch": {
    "l": 0.51724,
    "c": 0.15643,
    "h": 275.3
  },
  "luminance": 0.13037
}

Semantic roles & 50–950 ramp

primary

#515BC0

secondary

#CECA9F

accent

#CA51D6

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #515BC0

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

Preview Lab → · Contrast checker → · Palette generator →