#515CB7#515CB7

#515CB7 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.3% C 0.142 H 275.0°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#515CB7
RGB	rgb(81, 92, 183)
HSL	hsl(234, 41%, 52%)
HSV	hsv(234, 56%, 72%)
CMYK	cmyk(55.7%, 49.7%, 0%, 28.2%)
CIE-LAB	lab(42.49, 22.59, -49.69)
CIE-LCH	lch(42.49, 54.59, 294.45°)
OKLab	oklab(51.29% 0.0125 -0.1419)
OKLCH	oklch(51.29% 0.142 275)
XYZ	xyz(15.7650, 12.8214, 46.4346)
Luminance	0.1282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515CB7 #B7AC51

analogous

#518FB7 #515CB7 #7951B7

triadic

#515CB7 #B7515C #5CB751

tetradic

#515CB7 #B7518F #B7AC51 #51B779

square

#515CB7 #B7518F #B7AC51 #51B779

split-complementary

#515CB7 #B77951 #8FB751

monochromatic

#293064 #3B448F #515CB7 #7C85C9 #A8ADDB

Accessibility & contrast

On white

5.89

#515CB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#515CB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515CB7

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515CB7	#FFFFFF	#000000	##FFFFFF
##515CB7	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F69BA

Deuteranopia (green-blind)

#2060B5

Tritanopia (blue-blind)

#1A7081

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #515cb7;
/* rgb */ color: rgb(81, 92, 183);
/* oklch */ color: oklch(51.3% 0.142 275.0);

Tailwind

colors: {
  custom: {
    50: '#8a8acd',
    500: '#515cb7',
    950: '#000000',
  },
}

SCSS

$custom: #515cb7;
$custom-light: #8a8acd;
$custom-dark: #000000;

JSON

{
  "hex": "#515cb7",
  "rgb": {
    "r": 81,
    "g": 92,
    "b": 183
  },
  "hsl": {
    "h": 233.529,
    "s": 41.463,
    "l": 51.765
  },
  "oklch": {
    "l": 0.51292,
    "c": 0.14242,
    "h": 275
  },
  "luminance": 0.12823
}

Semantic roles & 50–950 ramp

primary

#515CB7

secondary

#C8C39C

accent

#C457D1

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #515CB7

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

Preview Lab → · Contrast checker → · Palette generator →