#515DC5#515DC5

#515DC5 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.5% C 0.161 H 274.5°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#515DC5
RGB	rgb(81, 93, 197)
HSL	hsl(234, 50%, 55%)
HSV	hsv(234, 59%, 77%)
CMYK	cmyk(58.9%, 52.8%, 0%, 22.7%)
CIE-LAB	lab(43.67, 26.63, -55.95)
CIE-LCH	lch(43.67, 61.96, 295.45°)
OKLab	oklab(52.47% 0.0126 -0.1603)
OKLCH	oklch(52.47% 0.161 274.5)
XYZ	xyz(17.3824, 13.6079, 54.5231)
Luminance	0.1361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DC5 #C5B951

analogous

#5197C5 #515DC5 #7F51C5

triadic

#515DC5 #C5515D #5DC551

tetradic

#515DC5 #C55197 #C5B951 #51C57F

square

#515DC5 #C55197 #C5B951 #51C57F

split-complementary

#515DC5 #C57F51 #97C551

monochromatic

#272F75 #3641A3 #515DC5 #7F88D4 #ADB2E4

Accessibility & contrast

On white

5.64

#515DC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#515DC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DC5

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DC5	#FFFFFF	#000000	##FFFFFF
##515DC5	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F6CC9

Deuteranopia (green-blind)

#0062C3

Tritanopia (blue-blind)

#007588

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #515dc5;
/* rgb */ color: rgb(81, 93, 197);
/* oklch */ color: oklch(52.5% 0.161 274.5);

Tailwind

colors: {
  custom: {
    50: '#8c8ad7',
    500: '#515dc5',
    950: '#000000',
  },
}

SCSS

$custom: #515dc5;
$custom-light: #8c8ad7;
$custom-dark: #000000;

JSON

{
  "hex": "#515dc5",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 197
  },
  "hsl": {
    "h": 233.793,
    "s": 50,
    "l": 54.51
  },
  "oklch": {
    "l": 0.52467,
    "c": 0.16076,
    "h": 274.5
  },
  "luminance": 0.13609
}

Semantic roles & 50–950 ramp

primary

#515DC5

secondary

#D1CCA0

accent

#CB4EDA

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #515DC5

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

Preview Lab → · Contrast checker → · Palette generator →