#515CC0#515CC0

#515CC0 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.9% C 0.155 H 274.9°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#515CC0
RGB	rgb(81, 92, 192)
HSL	hsl(234, 47%, 54%)
HSV	hsv(234, 58%, 75%)
CMYK	cmyk(57.8%, 52.1%, 0%, 24.7%)
CIE-LAB	lab(43.08, 25.59, -54.00)
CIE-LCH	lch(43.08, 59.76, 295.35°)
OKLab	oklab(51.92% 0.0133 -0.1545)
OKLCH	oklch(51.92% 0.155 274.9)
XYZ	xyz(16.7318, 13.2082, 51.5267)
Luminance	0.1321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515CC0 #C0B551

analogous

#5193C0 #515CC0 #7D51C0

triadic

#515CC0 #C0515C #5CC051

tetradic

#515CC0 #C05193 #C0B551 #51C07D

square

#515CC0 #C05193 #C0B551 #51C07D

split-complementary

#515CC0 #C07D51 #93C051

monochromatic

#282F6F #38429B #515CC0 #7E86D0 #ABB0E1

Accessibility & contrast

On white

5.77

#515CC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#515CC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515CC0

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515CC0	#FFFFFF	#000000	##FFFFFF
##515CC0	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#236BC4

Deuteranopia (green-blind)

#0761BE

Tritanopia (blue-blind)

#037385

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515cc0;
/* rgb */ color: rgb(81, 92, 192);
/* oklch */ color: oklch(51.9% 0.155 274.9);

Tailwind

colors: {
  custom: {
    50: '#8b8ad4',
    500: '#515cc0',
    950: '#000000',
  },
}

SCSS

$custom: #515cc0;
$custom-light: #8b8ad4;
$custom-dark: #000000;

JSON

{
  "hex": "#515cc0",
  "rgb": {
    "r": 81,
    "g": 92,
    "b": 192
  },
  "hsl": {
    "h": 234.054,
    "s": 46.835,
    "l": 53.529
  },
  "oklch": {
    "l": 0.51917,
    "c": 0.15511,
    "h": 274.9
  },
  "luminance": 0.13209
}

Semantic roles & 50–950 ramp

primary

#515CC0

secondary

#CEC99F

accent

#C951D6

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #515CC0

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

Preview Lab → · Contrast checker → · Palette generator →