#515EC4#515EC4

#515EC4 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.6% C 0.158 H 274.2°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#515EC4
RGB	rgb(81, 94, 196)
HSL	hsl(233, 49%, 54%)
HSV	hsv(233, 59%, 77%)
CMYK	cmyk(58.7%, 52%, 0%, 23.1%)
CIE-LAB	lab(43.86, 25.67, -55.06)
CIE-LCH	lch(43.86, 60.75, 294.99°)
OKLab	oklab(52.59% 0.0115 -0.1576)
OKLCH	oklch(52.59% 0.158 274.2)
XYZ	xyz(17.3566, 13.7389, 53.9511)
Luminance	0.1374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515EC4 #C4B751

analogous

#5198C4 #515EC4 #7E51C4

triadic

#515EC4 #C4515E #5EC451

tetradic

#515EC4 #C45198 #C4B751 #51C47E

square

#515EC4 #C45198 #C4B751 #51C47E

split-complementary

#515EC4 #C47E51 #98C451

monochromatic

#273073 #3743A1 #515EC4 #7F88D3 #ACB3E3

Accessibility & contrast

On white

5.60

#515EC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#515EC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515EC4

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515EC4	#FFFFFF	#000000	##FFFFFF
##515EC4	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#246DC8

Deuteranopia (green-blind)

#0263C2

Tritanopia (blue-blind)

#007588

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #515ec4;
/* rgb */ color: rgb(81, 94, 196);
/* oklch */ color: oklch(52.6% 0.158 274.2);

Tailwind

colors: {
  custom: {
    50: '#8c8bd6',
    500: '#515ec4',
    950: '#000000',
  },
}

SCSS

$custom: #515ec4;
$custom-light: #8c8bd6;
$custom-dark: #000000;

JSON

{
  "hex": "#515ec4",
  "rgb": {
    "r": 81,
    "g": 94,
    "b": 196
  },
  "hsl": {
    "h": 233.217,
    "s": 49.356,
    "l": 54.314
  },
  "oklch": {
    "l": 0.5259,
    "c": 0.15806,
    "h": 274.2
  },
  "luminance": 0.1374
}

Semantic roles & 50–950 ramp

primary

#515EC4

secondary

#D1CBA0

accent

#C94FD9

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0C14

muted

#7E7D83

Preview Lab

Preview with #515EC4

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

Preview Lab → · Contrast checker → · Palette generator →