#515DBC#515DBC

#515DBC is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.8% C 0.148 H 274.6°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#515DBC
RGB	rgb(81, 93, 188)
HSL	hsl(233, 44%, 53%)
HSV	hsv(233, 57%, 74%)
CMYK	cmyk(56.9%, 50.5%, 0%, 26.3%)
CIE-LAB	lab(43.07, 23.62, -51.68)
CIE-LCH	lch(43.07, 56.82, 294.57°)
OKLab	oklab(51.83% 0.0119 -0.1477)
OKLCH	oklch(51.83% 0.148 274.6)
XYZ	xyz(16.3818, 13.2077, 49.2533)
Luminance	0.1321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DBC #BCB051

analogous

#5192BC #515DBC #7A51BC

triadic

#515DBC #BC515D #5DBC51

tetradic

#515DBC #BC5192 #BCB051 #51BC7A

square

#515DBC #BC5192 #BCB051 #51BC7A

split-complementary

#515DBC #BC7A51 #92BC51

monochromatic

#29306A #3A4496 #515DBC #7D86CD #A9AFDE

Accessibility & contrast

On white

5.77

#515DBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#515DBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DBC

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DBC	#FFFFFF	#000000	##FFFFFF
##515DBC	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)

#2C6ABF

Deuteranopia (green-blind)

#1961BA

Tritanopia (blue-blind)

#107284

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515dbc;
/* rgb */ color: rgb(81, 93, 188);
/* oklch */ color: oklch(51.8% 0.148 274.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#515dbc",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 188
  },
  "hsl": {
    "h": 233.271,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.51833,
    "c": 0.14817,
    "h": 274.6
  },
  "luminance": 0.13209
}

Semantic roles & 50–950 ramp

primary

#515DBC

secondary

#CCC69D

accent

#C654D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0D0B14

muted

#7D7C82

Preview Lab

Preview with #515DBC

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

Preview Lab → · Contrast checker → · Palette generator →