#515BDE#515BDE

#515BDE is a mid, vivid blue. Relative luminance 0.145; OKLCH L 54.0% C 0.197 H 274.4°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#515BDE
RGB	rgb(81, 91, 222)
HSL	hsl(236, 68%, 59%)
HSV	hsv(236, 64%, 87%)
CMYK	cmyk(63.5%, 59%, 0%, 12.9%)
CIE-LAB	lab(44.95, 36.25, -68.21)
CIE-LCH	lch(44.95, 77.24, 297.99°)
OKLab	oklab(53.99% 0.0151 -0.1963)
OKLCH	oklch(53.99% 0.197 274.4)
XYZ	xyz(20.3149, 14.5037, 70.8220)
Luminance	0.1451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BDE #DED451

analogous

#51A1DE #515BDE #8E51DE

triadic

#515BDE #DE515B #5BDE51

tetradic

#515BDE #DE51A1 #DED451 #51DE8E

square

#515BDE #DE51A1 #DED451 #51DE8E

split-complementary

#515BDE #DE8E51 #A1DE51

monochromatic

#1D2698 #2732CB #515BDE #848BE8 #B8BCF2

Accessibility & contrast

On white

5.38

#515BDE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#515BDE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BDE

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BDE	#FFFFFF	#000000	##FFFFFF
##515BDE	1.00	5.38	3.90	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071E2

Deuteranopia (green-blind)

#0064DB

Tritanopia (blue-blind)

#007B94

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #515bde;
/* rgb */ color: rgb(81, 91, 222);
/* oklch */ color: oklch(54.0% 0.197 274.4);

Tailwind

colors: {
  custom: {
    50: '#9089e9',
    500: '#515bde',
    950: '#000000',
  },
}

SCSS

$custom: #515bde;
$custom-light: #9089e9;
$custom-dark: #000000;

JSON

{
  "hex": "#515bde",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 222
  },
  "hsl": {
    "h": 235.745,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.53985,
    "c": 0.19691,
    "h": 274.4
  },
  "luminance": 0.14505
}

Semantic roles & 50–950 ramp

primary

#515BDE

secondary

#E1DDAA

accent

#DF3DEB

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #515BDE

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

Preview Lab → · Contrast checker → · Palette generator →