#515FC5#515FC5

#515FC5 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.9% C 0.158 H 273.8°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#515FC5
RGB	rgb(81, 95, 197)
HSL	hsl(233, 50%, 55%)
HSV	hsv(233, 59%, 77%)
CMYK	cmyk(58.9%, 51.8%, 0%, 22.7%)
CIE-LAB	lab(44.18, 25.38, -55.12)
CIE-LCH	lch(44.18, 60.68, 294.72°)
OKLab	oklab(52.86% 0.0106 -0.1578)
OKLCH	oklch(52.86% 0.158 273.8)
XYZ	xyz(17.5603, 13.9636, 54.5824)
Luminance	0.1396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FC5 #C5B751

analogous

#5199C5 #515FC5 #7D51C5

triadic

#515FC5 #C5515F #5FC551

tetradic

#515FC5 #C55199 #C5B751 #51C57D

square

#515FC5 #C55199 #C5B751 #51C57D

split-complementary

#515FC5 #C57D51 #99C551

monochromatic

#273075 #3643A3 #515FC5 #7F89D4 #ADB3E4

Accessibility & contrast

On white

5.54

#515FC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#515FC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FC5

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FC5	#FFFFFF	#000000	##FFFFFF
##515FC5	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#256EC9

Deuteranopia (green-blind)

#0564C3

Tritanopia (blue-blind)

#007689

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #515fc5;
/* rgb */ color: rgb(81, 95, 197);
/* oklch */ color: oklch(52.9% 0.158 273.8);

Tailwind

colors: {
  custom: {
    50: '#8c8cd7',
    500: '#515fc5',
    950: '#000000',
  },
}

SCSS

$custom: #515fc5;
$custom-light: #8c8cd7;
$custom-dark: #000000;

JSON

{
  "hex": "#515fc5",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 197
  },
  "hsl": {
    "h": 232.759,
    "s": 50,
    "l": 54.51
  },
  "oklch": {
    "l": 0.52855,
    "c": 0.15814,
    "h": 273.8
  },
  "luminance": 0.13965
}

Semantic roles & 50–950 ramp

primary

#515FC5

secondary

#D1CCA0

accent

#C94EDA

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0C14

muted

#7E7D83

Preview Lab

Preview with #515FC5

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

Preview Lab → · Contrast checker → · Palette generator →