#515FD1#515FD1

#515FD1 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.7% C 0.175 H 273.7°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#515FD1
RGB	rgb(81, 95, 209)
HSL	hsl(233, 58%, 57%)
HSV	hsv(233, 61%, 82%)
CMYK	cmyk(61.2%, 54.5%, 0%, 18%)
CIE-LAB	lab(44.99, 29.41, -60.71)
CIE-LCH	lch(44.99, 67.46, 295.85°)
OKLab	oklab(53.72% 0.0113 -0.1743)
OKLCH	oklch(53.72% 0.175 273.7)
XYZ	xyz(18.9904, 14.5357, 62.1142)
Luminance	0.1454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FD1 #D1C351

analogous

#519FD1 #515FD1 #8351D1

triadic

#515FD1 #D1515F #5FD151

tetradic

#515FD1 #D1519F #D1C351 #51D183

square

#515FD1 #D1519F #D1C351 #51D183

split-complementary

#515FD1 #D18351 #9FD151

monochromatic

#232E85 #303EB5 #515FD1 #818CDE #B2B8EB

Accessibility & contrast

On white

5.37

#515FD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#515FD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FD1

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FD1	#FFFFFF	#000000	##FFFFFF
##515FD1	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0870D5

Deuteranopia (green-blind)

#0065CF

Tritanopia (blue-blind)

#007A8F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #515fd1;
/* rgb */ color: rgb(81, 95, 209);
/* oklch */ color: oklch(53.7% 0.175 273.7);

Tailwind

colors: {
  custom: {
    50: '#8e8ce0',
    500: '#515fd1',
    950: '#000000',
  },
}

SCSS

$custom: #515fd1;
$custom-light: #8e8ce0;
$custom-dark: #000000;

JSON

{
  "hex": "#515fd1",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 209
  },
  "hsl": {
    "h": 233.438,
    "s": 58.182,
    "l": 56.863
  },
  "oklch": {
    "l": 0.53722,
    "c": 0.17463,
    "h": 273.7
  },
  "luminance": 0.14537
}

Semantic roles & 50–950 ramp

primary

#515FD1

secondary

#D9D3A5

accent

#D046E1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #515FD1

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

Preview Lab → · Contrast checker → · Palette generator →