#515AD3#515AD3

#515AD3 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.9% C 0.184 H 275.0°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#515AD3
RGB	rgb(81, 90, 211)
HSL	hsl(236, 60%, 57%)
HSV	hsv(236, 62%, 83%)
CMYK	cmyk(61.6%, 57.3%, 0%, 17.3%)
CIE-LAB	lab(43.89, 33.19, -63.64)
CIE-LCH	lch(43.89, 71.78, 297.54°)
OKLab	oklab(52.95% 0.016 -0.1829)
OKLCH	oklch(52.95% 0.184 275)
XYZ	xyz(18.8035, 13.7633, 63.2811)
Luminance	0.1376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515AD3 #D3CA51

analogous

#519BD3 #515AD3 #8951D3

triadic

#515AD3 #D3515A #5AD351

tetradic

#515AD3 #D3519B #D3CA51 #51D389

square

#515AD3 #D3519B #D3CA51 #51D389

split-complementary

#515AD3 #D38951 #9BD351

monochromatic

#222987 #2F38B8 #515AD3 #8288DF #B3B7EC

Accessibility & contrast

On white

5.60

#515AD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#515AD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515AD3

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515AD3	#FFFFFF	#000000	##FFFFFF
##515AD3	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED7

Deuteranopia (green-blind)

#0062D1

Tritanopia (blue-blind)

#00778E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #515ad3;
/* rgb */ color: rgb(81, 90, 211);
/* oklch */ color: oklch(52.9% 0.184 275.0);

Tailwind

colors: {
  custom: {
    50: '#8e88e1',
    500: '#515ad3',
    950: '#000000',
  },
}

SCSS

$custom: #515ad3;
$custom-light: #8e88e1;
$custom-dark: #000000;

JSON

{
  "hex": "#515ad3",
  "rgb": {
    "r": 81,
    "g": 90,
    "b": 211
  },
  "hsl": {
    "h": 235.846,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.52947,
    "c": 0.18363,
    "h": 275
  },
  "luminance": 0.13765
}

Semantic roles & 50–950 ramp

primary

#515AD3

secondary

#DAD7A6

accent

#D845E3

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #515AD3

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

Preview Lab → · Contrast checker → · Palette generator →