#515BC8#515BC8

#515BC8 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.3% C 0.167 H 275.1°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#515BC8
RGB	rgb(81, 91, 200)
HSL	hsl(235, 52%, 55%)
HSV	hsv(235, 60%, 78%)
CMYK	cmyk(59.5%, 54.5%, 0%, 21.6%)
CIE-LAB	lab(43.36, 28.89, -58.17)
CIE-LCH	lch(43.36, 64.95, 296.41°)
OKLab	oklab(52.3% 0.0148 -0.1668)
OKLCH	oklch(52.3% 0.167 275.1)
XYZ	xyz(17.5564, 13.4003, 56.2937)
Luminance	0.1340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BC8 #C8BE51

analogous

#5196C8 #515BC8 #8251C8

triadic

#515BC8 #C8515B #5BC851

tetradic

#515BC8 #C85196 #C8BE51 #51C882

square

#515BC8 #C85196 #C8BE51 #51C882

split-complementary

#515BC8 #C88251 #96C851

monochromatic

#262D79 #353EA7 #515BC8 #8087D7 #AEB3E5

Accessibility & contrast

On white

5.71

#515BC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#515BC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BC8

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BC8	#FFFFFF	#000000	##FFFFFF
##515BC8	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E6CCC

Deuteranopia (green-blind)

#0061C6

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515bc8;
/* rgb */ color: rgb(81, 91, 200);
/* oklch */ color: oklch(52.3% 0.167 275.1);

Tailwind

colors: {
  custom: {
    50: '#8d89d9',
    500: '#515bc8',
    950: '#000000',
  },
}

SCSS

$custom: #515bc8;
$custom-light: #8d89d9;
$custom-dark: #000000;

JSON

{
  "hex": "#515bc8",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 200
  },
  "hsl": {
    "h": 234.958,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.52304,
    "c": 0.16748,
    "h": 275.1
  },
  "luminance": 0.13402
}

Semantic roles & 50–950 ramp

primary

#515BC8

secondary

#D3CFA1

accent

#CF4CDB

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #515BC8

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

Preview Lab → · Contrast checker → · Palette generator →