#515EB8#515EB8

#515EB8 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.8% C 0.141 H 274.2°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#515EB8
RGB	rgb(81, 94, 184)
HSL	hsl(232, 42%, 52%)
HSV	hsv(232, 56%, 72%)
CMYK	cmyk(56%, 48.9%, 0%, 27.8%)
CIE-LAB	lab(43.08, 21.66, -49.33)
CIE-LCH	lch(43.08, 53.87, 293.71°)
OKLab	oklab(51.76% 0.0104 -0.1408)
OKLCH	oklch(51.76% 0.141 274.2)
XYZ	xyz(16.0450, 13.2143, 47.0432)
Luminance	0.1321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515EB8 #B8AB51

analogous

#5192B8 #515EB8 #7851B8

triadic

#515EB8 #B8515E #5EB851

tetradic

#515EB8 #B85192 #B8AB51 #51B878

square

#515EB8 #B85192 #B8AB51 #51B878

split-complementary

#515EB8 #B87851 #92B851

monochromatic

#293165 #3B4691 #515EB8 #7C86CA #A8AEDB

Accessibility & contrast

On white

5.76

#515EB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#515EB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515EB8

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515EB8	#FFFFFF	#000000	##FFFFFF
##515EB8	1.00	5.76	3.64	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#326ABB

Deuteranopia (green-blind)

#2462B6

Tritanopia (blue-blind)

#187282

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515eb8;
/* rgb */ color: rgb(81, 94, 184);
/* oklch */ color: oklch(51.8% 0.141 274.2);

Tailwind

colors: {
  custom: {
    50: '#8a8bce',
    500: '#515eb8',
    950: '#000000',
  },
}

SCSS

$custom: #515eb8;
$custom-light: #8a8bce;
$custom-dark: #000000;

JSON

{
  "hex": "#515eb8",
  "rgb": {
    "r": 81,
    "g": 94,
    "b": 184
  },
  "hsl": {
    "h": 232.427,
    "s": 42.041,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51759,
    "c": 0.14115,
    "h": 274.2
  },
  "luminance": 0.13215
}

Semantic roles & 50–950 ramp

primary

#515EB8

secondary

#C9C39C

accent

#C256D2

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #515EB8

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

Preview Lab → · Contrast checker → · Palette generator →