#515FC4#515FC4

#515FC4 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.8% C 0.157 H 273.8°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#515FC4
RGB	rgb(81, 95, 196)
HSL	hsl(233, 49%, 54%)
HSV	hsv(233, 59%, 77%)
CMYK	cmyk(58.7%, 51.5%, 0%, 23.1%)
CIE-LAB	lab(44.12, 25.04, -54.64)
CIE-LCH	lch(44.12, 60.11, 294.62°)
OKLab	oklab(52.79% 0.0105 -0.1564)
OKLCH	oklch(52.79% 0.157 273.8)
XYZ	xyz(17.4461, 13.9179, 53.9809)
Luminance	0.1392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FC4 #C4B651

analogous

#5198C4 #515FC4 #7D51C4

triadic

#515FC4 #C4515F #5FC451

tetradic

#515FC4 #C45198 #C4B651 #51C47D

square

#515FC4 #C45198 #C4B651 #51C47D

split-complementary

#515FC4 #C47D51 #98C451

monochromatic

#273073 #3744A1 #515FC4 #7F89D3 #ACB3E3

Accessibility & contrast

On white

5.55

#515FC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#515FC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FC4

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FC4	#FFFFFF	#000000	##FFFFFF
##515FC4	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#276DC8

Deuteranopia (green-blind)

#0964C2

Tritanopia (blue-blind)

#007688

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #515fc4;
/* rgb */ color: rgb(81, 95, 196);
/* oklch */ color: oklch(52.8% 0.157 273.8);

Tailwind

colors: {
  custom: {
    50: '#8c8cd6',
    500: '#515fc4',
    950: '#000000',
  },
}

SCSS

$custom: #515fc4;
$custom-light: #8c8cd6;
$custom-dark: #000000;

JSON

{
  "hex": "#515fc4",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 196
  },
  "hsl": {
    "h": 232.696,
    "s": 49.356,
    "l": 54.314
  },
  "oklch": {
    "l": 0.52785,
    "c": 0.15675,
    "h": 273.8
  },
  "luminance": 0.13919
}

Semantic roles & 50–950 ramp

primary

#515FC4

secondary

#D1CBA0

accent

#C84FD9

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0C14

muted

#7E7D83

Preview Lab

Preview with #515FC4

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

Preview Lab → · Contrast checker → · Palette generator →