#515EC9#515EC9

#515EC9 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.9% C 0.165 H 274.1°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#515EC9
RGB	rgb(81, 94, 201)
HSL	hsl(234, 53%, 55%)
HSV	hsv(234, 60%, 79%)
CMYK	cmyk(59.7%, 53.2%, 0%, 21.2%)
CIE-LAB	lab(44.19, 27.35, -57.41)
CIE-LCH	lch(44.19, 63.59, 295.47°)
OKLab	oklab(52.95% 0.0119 -0.1645)
OKLCH	oklch(52.95% 0.165 274.1)
XYZ	xyz(17.9352, 13.9704, 56.9984)
Luminance	0.1397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515EC9 #C9BC51

analogous

#519AC9 #515EC9 #8051C9

triadic

#515EC9 #C9515E #5EC951

tetradic

#515EC9 #C9519A #C9BC51 #51C980

square

#515EC9 #C9519A #C9BC51 #51C980

split-complementary

#515EC9 #C98051 #9AC951

monochromatic

#262F7A #3441A9 #515EC9 #8089D7 #AEB4E6

Accessibility & contrast

On white

5.53

#515EC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#515EC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515EC9

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515EC9	#FFFFFF	#000000	##FFFFFF
##515EC9	1.00	5.53	3.79	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B6ECD

Deuteranopia (green-blind)

#0063C7

Tritanopia (blue-blind)

#00778A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #515ec9;
/* rgb */ color: rgb(81, 94, 201);
/* oklch */ color: oklch(52.9% 0.165 274.1);

Tailwind

colors: {
  custom: {
    50: '#8d8bda',
    500: '#515ec9',
    950: '#000000',
  },
}

SCSS

$custom: #515ec9;
$custom-light: #8d8bda;
$custom-dark: #000000;

JSON

{
  "hex": "#515ec9",
  "rgb": {
    "r": 81,
    "g": 94,
    "b": 201
  },
  "hsl": {
    "h": 233.5,
    "s": 52.632,
    "l": 55.294
  },
  "oklch": {
    "l": 0.52948,
    "c": 0.16498,
    "h": 274.1
  },
  "luminance": 0.13972
}

Semantic roles & 50–950 ramp

primary

#515EC9

secondary

#D4CFA2

accent

#CC4CDC

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #515EC9

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

Preview Lab → · Contrast checker → · Palette generator →