#515CC9#515CC9

#515CC9 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.6% C 0.168 H 274.7°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#515CC9
RGB	rgb(81, 92, 201)
HSL	hsl(235, 53%, 55%)
HSV	hsv(235, 60%, 79%)
CMYK	cmyk(59.7%, 54.2%, 0%, 21.2%)
CIE-LAB	lab(43.68, 28.60, -58.23)
CIE-LCH	lch(43.68, 64.88, 296.16°)
OKLab	oklab(52.57% 0.0138 -0.167)
OKLCH	oklch(52.57% 0.168 274.7)
XYZ	xyz(17.7597, 13.6193, 56.9399)
Luminance	0.1362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515CC9 #C9BE51

analogous

#5198C9 #515CC9 #8251C9

triadic

#515CC9 #C9515C #5CC951

tetradic

#515CC9 #C95198 #C9BE51 #51C982

square

#515CC9 #C95198 #C9BE51 #51C982

split-complementary

#515CC9 #C98251 #98C951

monochromatic

#262D7A #343FA9 #515CC9 #8088D7 #AEB4E6

Accessibility & contrast

On white

5.64

#515CC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#515CC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515CC9

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515CC9	#FFFFFF	#000000	##FFFFFF
##515CC9	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#116DCD

Deuteranopia (green-blind)

#0062C7

Tritanopia (blue-blind)

#007589

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #515cc9;
/* rgb */ color: rgb(81, 92, 201);
/* oklch */ color: oklch(52.6% 0.168 274.7);

Tailwind

colors: {
  custom: {
    50: '#8d8ada',
    500: '#515cc9',
    950: '#000000',
  },
}

SCSS

$custom: #515cc9;
$custom-light: #8d8ada;
$custom-dark: #000000;

JSON

{
  "hex": "#515cc9",
  "rgb": {
    "r": 81,
    "g": 92,
    "b": 201
  },
  "hsl": {
    "h": 234.5,
    "s": 52.632,
    "l": 55.294
  },
  "oklch": {
    "l": 0.52566,
    "c": 0.16756,
    "h": 274.7
  },
  "luminance": 0.13621
}

Semantic roles & 50–950 ramp

primary

#515CC9

secondary

#D4CFA2

accent

#CF4CDC

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #515CC9

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

Preview Lab → · Contrast checker → · Palette generator →