#515CBF#515CBF

#515CBF is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.8% C 0.154 H 274.9°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#515CBF
RGB	rgb(81, 92, 191)
HSL	hsl(234, 46%, 53%)
HSV	hsv(234, 58%, 75%)
CMYK	cmyk(57.6%, 51.8%, 0%, 25.1%)
CIE-LAB	lab(43.01, 25.26, -53.53)
CIE-LCH	lch(43.01, 59.19, 295.26°)
OKLab	oklab(51.85% 0.0132 -0.1531)
OKLCH	oklch(51.85% 0.154 274.9)
XYZ	xyz(16.6214, 13.1640, 50.9451)
Luminance	0.1316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515CBF #BFB451

analogous

#5193BF #515CBF #7D51BF

triadic

#515CBF #BF515C #5CBF51

tetradic

#515CBF #BF5193 #BFB451 #51BF7D

square

#515CBF #BF5193 #BFB451 #51BF7D

split-complementary

#515CBF #BF7D51 #93BF51

monochromatic

#282F6D #39429A #515CBF #7E86CF #AAB0E0

Accessibility & contrast

On white

5.78

#515CBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#515CBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515CBF

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515CBF	#FFFFFF	#000000	##FFFFFF
##515CBF	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#256AC3

Deuteranopia (green-blind)

#0C61BD

Tritanopia (blue-blind)

#067385

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515cbf;
/* rgb */ color: rgb(81, 92, 191);
/* oklch */ color: oklch(51.8% 0.154 274.9);

Tailwind

colors: {
  custom: {
    50: '#8b8ad3',
    500: '#515cbf',
    950: '#000000',
  },
}

SCSS

$custom: #515cbf;
$custom-light: #8b8ad3;
$custom-dark: #000000;

JSON

{
  "hex": "#515cbf",
  "rgb": {
    "r": 81,
    "g": 92,
    "b": 191
  },
  "hsl": {
    "h": 234,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.51847,
    "c": 0.15371,
    "h": 274.9
  },
  "luminance": 0.13165
}

Semantic roles & 50–950 ramp

primary

#515CBF

secondary

#CEC99E

accent

#C952D6

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #515CBF

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

Preview Lab → · Contrast checker → · Palette generator →