#515DCF#515DCF

#515DCF is a mid, vivid blue. Relative luminance 0.141; OKLCH L 53.2% C 0.174 H 274.3°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#515DCF
RGB	rgb(81, 93, 207)
HSL	hsl(234, 57%, 56%)
HSV	hsv(234, 61%, 81%)
CMYK	cmyk(60.9%, 55.1%, 0%, 18.8%)
CIE-LAB	lab(44.35, 29.99, -60.61)
CIE-LCH	lch(44.35, 67.62, 296.32°)
OKLab	oklab(53.2% 0.0131 -0.174)
OKLCH	oklch(53.2% 0.174 274.3)
XYZ	xyz(18.5665, 14.0815, 60.7590)
Luminance	0.1408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DCF #CFC351

analogous

#519CCF #515DCF #8451CF

triadic

#515DCF #CF515D #5DCF51

tetradic

#515DCF #CF519C #CFC351 #51CF84

square

#515DCF #CF519C #CFC351 #51CF84

split-complementary

#515DCF #CF8451 #9CCF51

monochromatic

#242D82 #313DB2 #515DCF #818ADC #B1B6E9

Accessibility & contrast

On white

5.50

#515DCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#515DCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DCF

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DCF	#FFFFFF	#000000	##FFFFFF
##515DCF	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED3

Deuteranopia (green-blind)

#0064CD

Tritanopia (blue-blind)

#00788D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #515dcf;
/* rgb */ color: rgb(81, 93, 207);
/* oklch */ color: oklch(53.2% 0.174 274.3);

Tailwind

colors: {
  custom: {
    50: '#8e8ade',
    500: '#515dcf',
    950: '#000000',
  },
}

SCSS

$custom: #515dcf;
$custom-light: #8e8ade;
$custom-dark: #000000;

JSON

{
  "hex": "#515dcf",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 207
  },
  "hsl": {
    "h": 234.286,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.53198,
    "c": 0.17445,
    "h": 274.3
  },
  "luminance": 0.14083
}

Semantic roles & 50–950 ramp

primary

#515DCF

secondary

#D8D3A4

accent

#D248E0

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #515DCF

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

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