#515BD9#515BD9

#515BD9 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.6% C 0.190 H 274.6°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#515BD9
RGB	rgb(81, 91, 217)
HSL	hsl(236, 64%, 58%)
HSV	hsv(236, 63%, 85%)
CMYK	cmyk(62.7%, 58.1%, 0%, 14.9%)
CIE-LAB	lab(44.57, 34.58, -65.96)
CIE-LCH	lch(44.57, 74.48, 297.66°)
OKLab	oklab(53.59% 0.0151 -0.1897)
OKLCH	oklch(53.59% 0.19 274.6)
XYZ	xyz(19.6547, 14.2396, 67.3449)
Luminance	0.1424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BD9 #D9CF51

analogous

#519FD9 #515BD9 #8B51D9

triadic

#515BD9 #D9515B #5BD951

tetradic

#515BD9 #D9519F #D9CF51 #51D98B

square

#515BD9 #D9519F #D9CF51 #51D98B

split-complementary

#515BD9 #D98B51 #9FD951

monochromatic

#1F2890 #2A36C2 #515BD9 #838AE4 #B5BAEF

Accessibility & contrast

On white

5.46

#515BD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#515BD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BD9

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BD9	#FFFFFF	#000000	##FFFFFF
##515BD9	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070DD

Deuteranopia (green-blind)

#0064D6

Tritanopia (blue-blind)

#007A91

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #515bd9;
/* rgb */ color: rgb(81, 91, 217);
/* oklch */ color: oklch(53.6% 0.190 274.6);

Tailwind

colors: {
  custom: {
    50: '#8f89e6',
    500: '#515bd9',
    950: '#000000',
  },
}

SCSS

$custom: #515bd9;
$custom-light: #8f89e6;
$custom-dark: #000000;

JSON

{
  "hex": "#515bd9",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 217
  },
  "hsl": {
    "h": 235.588,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.53592,
    "c": 0.19034,
    "h": 274.6
  },
  "luminance": 0.14241
}

Semantic roles & 50–950 ramp

primary

#515BD9

secondary

#DEDAA8

accent

#DB41E7

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #515BD9

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

Preview Lab → · Contrast checker → · Palette generator →