#515CBC#515CBC

#515CBC is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.6% C 0.149 H 275.0°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#515CBC
RGB	rgb(81, 92, 188)
HSL	hsl(234, 44%, 53%)
HSV	hsv(234, 57%, 74%)
CMYK	cmyk(56.9%, 51.1%, 0%, 26.3%)
CIE-LAB	lab(42.81, 24.26, -52.10)
CIE-LCH	lch(42.81, 57.47, 294.97°)
OKLab	oklab(51.64% 0.013 -0.1489)
OKLCH	oklch(51.64% 0.15 275)
XYZ	xyz(16.2947, 13.0333, 49.2242)
Luminance	0.1303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515CBC #BCB151

analogous

#5191BC #515CBC #7C51BC

triadic

#515CBC #BC515C #5CBC51

tetradic

#515CBC #BC5191 #BCB151 #51BC7C

square

#515CBC #BC5191 #BCB151 #51BC7C

split-complementary

#515CBC #BC7C51 #91BC51

monochromatic

#292F6A #3A4396 #515CBC #7D85CD #A9AFDE

Accessibility & contrast

On white

5.82

#515CBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#515CBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515CBC

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515CBC	#FFFFFF	#000000	##FFFFFF
##515CBC	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#296ABF

Deuteranopia (green-blind)

#1561BA

Tritanopia (blue-blind)

#107283

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #515cbc;
/* rgb */ color: rgb(81, 92, 188);
/* oklch */ color: oklch(51.6% 0.149 275.0);

Tailwind

colors: {
  custom: {
    50: '#8b8ad1',
    500: '#515cbc',
    950: '#000000',
  },
}

SCSS

$custom: #515cbc;
$custom-light: #8b8ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#515cbc",
  "rgb": {
    "r": 81,
    "g": 92,
    "b": 188
  },
  "hsl": {
    "h": 233.832,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.51636,
    "c": 0.1495,
    "h": 275
  },
  "luminance": 0.13034
}

Semantic roles & 50–950 ramp

primary

#515CBC

secondary

#CCC79D

accent

#C754D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0D0B14

muted

#7D7C82

Preview Lab

Preview with #515CBC

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

Preview Lab → · Contrast checker → · Palette generator →