#515EC5#515EC5

#515EC5 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.7% C 0.159 H 274.2°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#515EC5
RGB	rgb(81, 94, 197)
HSL	hsl(233, 50%, 55%)
HSV	hsv(233, 59%, 77%)
CMYK	cmyk(58.9%, 52.3%, 0%, 22.7%)
CIE-LAB	lab(43.92, 26.00, -55.53)
CIE-LCH	lch(43.92, 61.32, 295.09°)
OKLab	oklab(52.66% 0.0116 -0.159)
OKLCH	oklch(52.66% 0.159 274.2)
XYZ	xyz(17.4708, 13.7846, 54.5525)
Luminance	0.1379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515EC5 #C5B851

analogous

#5198C5 #515EC5 #7E51C5

triadic

#515EC5 #C5515E #5EC551

tetradic

#515EC5 #C55198 #C5B851 #51C57E

square

#515EC5 #C55198 #C5B851 #51C57E

split-complementary

#515EC5 #C57E51 #98C551

monochromatic

#273075 #3642A3 #515EC5 #7F88D4 #ADB3E4

Accessibility & contrast

On white

5.59

#515EC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#515EC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515EC5

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515EC5	#FFFFFF	#000000	##FFFFFF
##515EC5	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)

#226DC9

Deuteranopia (green-blind)

#0063C3

Tritanopia (blue-blind)

#007688

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #515ec5;
/* rgb */ color: rgb(81, 94, 197);
/* oklch */ color: oklch(52.7% 0.159 274.2);

Tailwind

colors: {
  custom: {
    50: '#8c8bd7',
    500: '#515ec5',
    950: '#000000',
  },
}

SCSS

$custom: #515ec5;
$custom-light: #8c8bd7;
$custom-dark: #000000;

JSON

{
  "hex": "#515ec5",
  "rgb": {
    "r": 81,
    "g": 94,
    "b": 197
  },
  "hsl": {
    "h": 233.276,
    "s": 50,
    "l": 54.51
  },
  "oklch": {
    "l": 0.52661,
    "c": 0.15945,
    "h": 274.2
  },
  "luminance": 0.13786
}

Semantic roles & 50–950 ramp

primary

#515EC5

secondary

#D1CCA0

accent

#CA4EDA

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0C14

muted

#7E7D83

Preview Lab

Preview with #515EC5

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

Preview Lab → · Contrast checker → · Palette generator →