#515FBC#515FBC

#515FBC is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.2% C 0.146 H 273.8°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#515FBC
RGB	rgb(81, 95, 188)
HSL	hsl(232, 44%, 53%)
HSV	hsv(232, 57%, 74%)
CMYK	cmyk(56.9%, 49.5%, 0%, 26.3%)
CIE-LAB	lab(43.60, 22.36, -50.83)
CIE-LCH	lch(43.60, 55.53, 293.75°)
OKLab	oklab(52.23% 0.0097 -0.1452)
OKLCH	oklch(52.23% 0.146 273.8)
XYZ	xyz(16.5597, 13.5634, 49.3126)
Luminance	0.1356 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FBC #BCAE51

analogous

#5194BC #515FBC #7951BC

triadic

#515FBC #BC515F #5FBC51

tetradic

#515FBC #BC5194 #BCAE51 #51BC79

square

#515FBC #BC5194 #BCAE51 #51BC79

split-complementary

#515FBC #BC7951 #94BC51

monochromatic

#29316A #3A4696 #515FBC #7D88CD #A9B0DE

Accessibility & contrast

On white

5.66

#515FBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#515FBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FBC

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FBC	#FFFFFF	#000000	##FFFFFF
##515FBC	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#306CBF

Deuteranopia (green-blind)

#2063BA

Tritanopia (blue-blind)

#0F7484

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #515fbc;
/* rgb */ color: rgb(81, 95, 188);
/* oklch */ color: oklch(52.2% 0.146 273.8);

Tailwind

colors: {
  custom: {
    50: '#8a8cd1',
    500: '#515fbc',
    950: '#000000',
  },
}

SCSS

$custom: #515fbc;
$custom-light: #8a8cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#515fbc",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 188
  },
  "hsl": {
    "h": 232.15,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.52231,
    "c": 0.14552,
    "h": 273.8
  },
  "luminance": 0.13565
}

Semantic roles & 50–950 ramp

primary

#515FBC

secondary

#CCC69D

accent

#C354D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0D0C14

muted

#7D7D82

Preview Lab

Preview with #515FBC

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

Preview Lab → · Contrast checker → · Palette generator →