#515CBA#515CBA

#515CBA is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.5% C 0.147 H 275.0°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#515CBA
RGB	rgb(81, 92, 186)
HSL	hsl(234, 43%, 52%)
HSV	hsv(234, 56%, 73%)
CMYK	cmyk(56.5%, 50.5%, 0%, 27.1%)
CIE-LAB	lab(42.68, 23.59, -51.14)
CIE-LCH	lch(42.68, 56.32, 294.76°)
OKLab	oklab(51.5% 0.0128 -0.1461)
OKLCH	oklch(51.5% 0.147 275)
XYZ	xyz(16.0806, 12.9477, 48.0966)
Luminance	0.1295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515CBA #BAAF51

analogous

#5191BA #515CBA #7A51BA

triadic

#515CBA #BA515C #5CBA51

tetradic

#515CBA #BA5191 #BAAF51 #51BA7A

square

#515CBA #BA5191 #BAAF51 #51BA7A

split-complementary

#515CBA #BA7A51 #91BA51

monochromatic

#293068 #3A4493 #515CBA #7D85CB #A9AEDD

Accessibility & contrast

On white

5.85

#515CBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#515CBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515CBA

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515CBA	#FFFFFF	#000000	##FFFFFF
##515CBA	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B69BD

Deuteranopia (green-blind)

#1A61B8

Tritanopia (blue-blind)

#157182

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #515cba;
/* rgb */ color: rgb(81, 92, 186);
/* oklch */ color: oklch(51.5% 0.147 275.0);

Tailwind

colors: {
  custom: {
    50: '#8a8acf',
    500: '#515cba',
    950: '#000000',
  },
}

SCSS

$custom: #515cba;
$custom-light: #8a8acf;
$custom-dark: #000000;

JSON

{
  "hex": "#515cba",
  "rgb": {
    "r": 81,
    "g": 92,
    "b": 186
  },
  "hsl": {
    "h": 233.714,
    "s": 43.21,
    "l": 52.353
  },
  "oklch": {
    "l": 0.51498,
    "c": 0.14668,
    "h": 275
  },
  "luminance": 0.12949
}

Semantic roles & 50–950 ramp

primary

#515CBA

secondary

#CAC59D

accent

#C655D3

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0D0B14

muted

#7D7C82

Preview Lab

Preview with #515CBA

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

Preview Lab → · Contrast checker → · Palette generator →