#515BDD#515BDD

#515BDD is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.9% C 0.196 H 274.4°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#515BDD
RGB	rgb(81, 91, 221)
HSL	hsl(236, 67%, 59%)
HSV	hsv(236, 63%, 87%)
CMYK	cmyk(63.3%, 58.8%, 0%, 13.3%)
CIE-LAB	lab(44.87, 35.91, -67.76)
CIE-LCH	lch(44.87, 76.69, 297.92°)
OKLab	oklab(53.91% 0.0151 -0.195)
OKLCH	oklch(53.91% 0.196 274.4)
XYZ	xyz(20.1813, 14.4503, 70.1183)
Luminance	0.1445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BDD #DDD351

analogous

#51A1DD #515BDD #8D51DD

triadic

#515BDD #DD515B #5BDD51

tetradic

#515BDD #DD51A1 #DDD351 #51DD8D

square

#515BDD #DD51A1 #DDD351 #51DD8D

split-complementary

#515BDD #DD8D51 #A1DD51

monochromatic

#1D2696 #2733C9 #515BDD #848BE7 #B7BCF1

Accessibility & contrast

On white

5.40

#515BDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#515BDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BDD

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BDD	#FFFFFF	#000000	##FFFFFF
##515BDD	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070E1

Deuteranopia (green-blind)

#0064DA

Tritanopia (blue-blind)

#007B93

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #515bdd;
/* rgb */ color: rgb(81, 91, 221);
/* oklch */ color: oklch(53.9% 0.196 274.4);

Tailwind

colors: {
  custom: {
    50: '#9089e8',
    500: '#515bdd',
    950: '#000000',
  },
}

SCSS

$custom: #515bdd;
$custom-light: #9089e8;
$custom-dark: #000000;

JSON

{
  "hex": "#515bdd",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 221
  },
  "hsl": {
    "h": 235.714,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.53906,
    "c": 0.1956,
    "h": 274.4
  },
  "luminance": 0.14452
}

Semantic roles & 50–950 ramp

primary

#515BDD

secondary

#E0DCAA

accent

#DE3EEA

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #515BDD

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

Preview Lab → · Contrast checker → · Palette generator →