#515BDF#515BDF

#515BDF is a mid, vivid blue. Relative luminance 0.146; OKLCH L 54.1% C 0.198 H 274.4°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#515BDF
RGB	rgb(81, 91, 223)
HSL	hsl(236, 69%, 60%)
HSV	hsv(236, 64%, 87%)
CMYK	cmyk(63.7%, 59.2%, 0%, 12.5%)
CIE-LAB	lab(45.02, 36.58, -68.65)
CIE-LCH	lch(45.02, 77.79, 298.05°)
OKLab	oklab(54.06% 0.0151 -0.1976)
OKLCH	oklch(54.06% 0.198 274.4)
XYZ	xyz(20.4493, 14.5575, 71.5300)
Luminance	0.1456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BDF #DFD551

analogous

#51A2DF #515BDF #8E51DF

triadic

#515BDF #DF515B #5BDF51

tetradic

#515BDF #DF51A2 #DFD551 #51DF8E

square

#515BDF #DF51A2 #DFD551 #51DF8E

split-complementary

#515BDF #DF8E51 #A2DF51

monochromatic

#1C2599 #2632CD #515BDF #858CE9 #B8BCF2

Accessibility & contrast

On white

5.37

#515BDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#515BDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BDF

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BDF	#FFFFFF	#000000	##FFFFFF
##515BDF	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071E3

Deuteranopia (green-blind)

#0064DC

Tritanopia (blue-blind)

#007C94

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #515bdf;
/* rgb */ color: rgb(81, 91, 223);
/* oklch */ color: oklch(54.1% 0.198 274.4);

Tailwind

colors: {
  custom: {
    50: '#9189ea',
    500: '#515bdf',
    950: '#000000',
  },
}

SCSS

$custom: #515bdf;
$custom-light: #9189ea;
$custom-dark: #000000;

JSON

{
  "hex": "#515bdf",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 223
  },
  "hsl": {
    "h": 235.775,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.54064,
    "c": 0.19821,
    "h": 274.4
  },
  "luminance": 0.14559
}

Semantic roles & 50–950 ramp

primary

#515BDF

secondary

#E1DEAA

accent

#DF3CEC

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #515BDF

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

Preview Lab → · Contrast checker → · Palette generator →