#515FCF#515FCF

#515FCF is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.6% C 0.172 H 273.7°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#515FCF
RGB	rgb(81, 95, 207)
HSL	hsl(233, 57%, 56%)
HSV	hsv(233, 61%, 81%)
CMYK	cmyk(60.9%, 54.1%, 0%, 18.8%)
CIE-LAB	lab(44.85, 28.74, -59.79)
CIE-LCH	lch(44.85, 66.34, 295.67°)
OKLab	oklab(53.58% 0.0112 -0.1715)
OKLCH	oklch(53.58% 0.172 273.7)
XYZ	xyz(18.7443, 14.4372, 60.8183)
Luminance	0.1444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FCF #CFC151

analogous

#519ECF #515FCF #8251CF

triadic

#515FCF #CF515F #5FCF51

tetradic

#515FCF #CF519E #CFC151 #51CF82

square

#515FCF #CF519E #CFC151 #51CF82

split-complementary

#515FCF #CF8251 #9ECF51

monochromatic

#242E82 #313FB2 #515FCF #818BDC #B1B7E9

Accessibility & contrast

On white

5.40

#515FCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#515FCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FCF

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FCF	#FFFFFF	#000000	##FFFFFF
##515FCF	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1070D3

Deuteranopia (green-blind)

#0065CD

Tritanopia (blue-blind)

#00798E

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #515fcf;
/* rgb */ color: rgb(81, 95, 207);
/* oklch */ color: oklch(53.6% 0.172 273.7);

Tailwind

colors: {
  custom: {
    50: '#8e8cde',
    500: '#515fcf',
    950: '#000000',
  },
}

SCSS

$custom: #515fcf;
$custom-light: #8e8cde;
$custom-dark: #000000;

JSON

{
  "hex": "#515fcf",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 207
  },
  "hsl": {
    "h": 233.333,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.53575,
    "c": 0.17191,
    "h": 273.7
  },
  "luminance": 0.14439
}

Semantic roles & 50–950 ramp

primary

#515FCF

secondary

#D8D2A4

accent

#CF48E0

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #515FCF

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

Preview Lab → · Contrast checker → · Palette generator →