#515FC3#515FC3

#515FC3 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.7% C 0.155 H 273.8°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#515FC3
RGB	rgb(81, 95, 195)
HSL	hsl(233, 49%, 54%)
HSV	hsv(233, 58%, 76%)
CMYK	cmyk(58.5%, 51.3%, 0%, 23.5%)
CIE-LAB	lab(44.05, 24.70, -54.17)
CIE-LCH	lch(44.05, 59.54, 294.51°)
OKLab	oklab(52.71% 0.0104 -0.155)
OKLCH	oklch(52.71% 0.155 273.8)
XYZ	xyz(17.3327, 13.8726, 53.3835)
Luminance	0.1387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FC3 #C3B551

analogous

#5198C3 #515FC3 #7C51C3

triadic

#515FC3 #C3515F #5FC351

tetradic

#515FC3 #C35198 #C3B551 #51C37C

square

#515FC3 #C35198 #C3B551 #51C37C

split-complementary

#515FC3 #C37C51 #98C351

monochromatic

#273172 #3744A0 #515FC3 #7F89D3 #ACB3E2

Accessibility & contrast

On white

5.56

#515FC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#515FC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FC3

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FC3	#FFFFFF	#000000	##FFFFFF
##515FC3	1.00	5.56	3.77	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#286DC7

Deuteranopia (green-blind)

#0E63C1

Tritanopia (blue-blind)

#007688

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #515fc3;
/* rgb */ color: rgb(81, 95, 195);
/* oklch */ color: oklch(52.7% 0.155 273.8);

Tailwind

colors: {
  custom: {
    50: '#8c8cd6',
    500: '#515fc3',
    950: '#000000',
  },
}

SCSS

$custom: #515fc3;
$custom-light: #8c8cd6;
$custom-dark: #000000;

JSON

{
  "hex": "#515fc3",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 195
  },
  "hsl": {
    "h": 232.632,
    "s": 48.718,
    "l": 54.118
  },
  "oklch": {
    "l": 0.52714,
    "c": 0.15536,
    "h": 273.8
  },
  "luminance": 0.13874
}

Semantic roles & 50–950 ramp

primary

#515FC3

secondary

#D0CAA0

accent

#C750D8

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0C14

muted

#7E7D83

Preview Lab

Preview with #515FC3

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

Preview Lab → · Contrast checker → · Palette generator →