#515EC8#515EC8

#515EC8 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.9% C 0.164 H 274.1°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#515EC8
RGB	rgb(81, 94, 200)
HSL	hsl(233, 52%, 55%)
HSV	hsv(233, 60%, 78%)
CMYK	cmyk(59.5%, 53%, 0%, 21.6%)
CIE-LAB	lab(44.12, 27.01, -56.94)
CIE-LCH	lch(44.12, 63.02, 295.38°)
OKLab	oklab(52.88% 0.0118 -0.1632)
OKLCH	oklch(52.88% 0.164 274.1)
XYZ	xyz(17.8180, 13.9235, 56.3809)
Luminance	0.1393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515EC8 #C8BB51

analogous

#519AC8 #515EC8 #7F51C8

triadic

#515EC8 #C8515E #5EC851

tetradic

#515EC8 #C8519A #C8BB51 #51C87F

square

#515EC8 #C8519A #C8BB51 #51C87F

split-complementary

#515EC8 #C87F51 #9AC851

monochromatic

#262F79 #3541A7 #515EC8 #8089D7 #AEB4E5

Accessibility & contrast

On white

5.55

#515EC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#515EC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515EC8

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515EC8	#FFFFFF	#000000	##FFFFFF
##515EC8	1.00	5.55	3.79	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D6ECC

Deuteranopia (green-blind)

#0063C6

Tritanopia (blue-blind)

#00778A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #515ec8;
/* rgb */ color: rgb(81, 94, 200);
/* oklch */ color: oklch(52.9% 0.164 274.1);

Tailwind

colors: {
  custom: {
    50: '#8c8bd9',
    500: '#515ec8',
    950: '#000000',
  },
}

SCSS

$custom: #515ec8;
$custom-light: #8c8bd9;
$custom-dark: #000000;

JSON

{
  "hex": "#515ec8",
  "rgb": {
    "r": 81,
    "g": 94,
    "b": 200
  },
  "hsl": {
    "h": 233.445,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.52875,
    "c": 0.16361,
    "h": 274.1
  },
  "luminance": 0.13925
}

Semantic roles & 50–950 ramp

primary

#515EC8

secondary

#D3CEA1

accent

#CC4CDB

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #515EC8

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

Preview Lab → · Contrast checker → · Palette generator →