#515CC8#515CC8

#515CC8 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.5% C 0.166 H 274.8°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#515CC8
RGB	rgb(81, 92, 200)
HSL	hsl(234, 52%, 55%)
HSV	hsv(234, 60%, 78%)
CMYK	cmyk(59.5%, 54%, 0%, 21.6%)
CIE-LAB	lab(43.61, 28.26, -57.77)
CIE-LCH	lch(43.61, 64.31, 296.07°)
OKLab	oklab(52.49% 0.0138 -0.1656)
OKLCH	oklch(52.49% 0.166 274.8)
XYZ	xyz(17.6424, 13.5724, 56.3224)
Luminance	0.1357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515CC8 #C8BD51

analogous

#5197C8 #515CC8 #8251C8

triadic

#515CC8 #C8515C #5CC851

tetradic

#515CC8 #C85197 #C8BD51 #51C882

square

#515CC8 #C85197 #C8BD51 #51C882

split-complementary

#515CC8 #C88251 #97C851

monochromatic

#262E79 #353FA7 #515CC8 #8088D7 #AEB3E5

Accessibility & contrast

On white

5.65

#515CC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#515CC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515CC8

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515CC8	#FFFFFF	#000000	##FFFFFF
##515CC8	1.00	5.65	3.71	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#146CCC

Deuteranopia (green-blind)

#0062C6

Tritanopia (blue-blind)

#007589

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #515cc8;
/* rgb */ color: rgb(81, 92, 200);
/* oklch */ color: oklch(52.5% 0.166 274.8);

Tailwind

colors: {
  custom: {
    50: '#8d8ad9',
    500: '#515cc8',
    950: '#000000',
  },
}

SCSS

$custom: #515cc8;
$custom-light: #8d8ad9;
$custom-dark: #000000;

JSON

{
  "hex": "#515cc8",
  "rgb": {
    "r": 81,
    "g": 92,
    "b": 200
  },
  "hsl": {
    "h": 234.454,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.52493,
    "c": 0.16619,
    "h": 274.8
  },
  "luminance": 0.13574
}

Semantic roles & 50–950 ramp

primary

#515CC8

secondary

#D3CFA1

accent

#CE4CDB

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #515CC8

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

Preview Lab → · Contrast checker → · Palette generator →