#515FC1#515FC1

#515FC1 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.6% C 0.153 H 273.8°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#515FC1
RGB	rgb(81, 95, 193)
HSL	hsl(233, 47%, 54%)
HSV	hsv(233, 58%, 76%)
CMYK	cmyk(58%, 50.8%, 0%, 24.3%)
CIE-LAB	lab(43.92, 24.03, -53.22)
CIE-LCH	lch(43.92, 58.40, 294.30°)
OKLab	oklab(52.58% 0.0102 -0.1522)
OKLCH	oklch(52.58% 0.153 273.8)
XYZ	xyz(17.1080, 13.7827, 52.2005)
Luminance	0.1378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FC1 #C1B351

analogous

#5197C1 #515FC1 #7B51C1

triadic

#515FC1 #C1515F #5FC151

tetradic

#515FC1 #C15197 #C1B351 #51C17B

square

#515FC1 #C15197 #C1B351 #51C17B

split-complementary

#515FC1 #C17B51 #97C151

monochromatic

#283170 #38459D #515FC1 #7E88D1 #ABB2E1

Accessibility & contrast

On white

5.59

#515FC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#515FC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FC1

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FC1	#FFFFFF	#000000	##FFFFFF
##515FC1	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B6DC5

Deuteranopia (green-blind)

#1463BF

Tritanopia (blue-blind)

#007587

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #515fc1;
/* rgb */ color: rgb(81, 95, 193);
/* oklch */ color: oklch(52.6% 0.153 273.8);

Tailwind

colors: {
  custom: {
    50: '#8b8cd4',
    500: '#515fc1',
    950: '#000000',
  },
}

SCSS

$custom: #515fc1;
$custom-light: #8b8cd4;
$custom-dark: #000000;

JSON

{
  "hex": "#515fc1",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 193
  },
  "hsl": {
    "h": 232.5,
    "s": 47.458,
    "l": 53.725
  },
  "oklch": {
    "l": 0.52575,
    "c": 0.15256,
    "h": 273.8
  },
  "luminance": 0.13784
}

Semantic roles & 50–950 ramp

primary

#515FC1

secondary

#CFC99F

accent

#C651D7

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0C14

muted

#7E7D83

Preview Lab

Preview with #515FC1

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

Preview Lab → · Contrast checker → · Palette generator →