#515EB3#515EB3

#515EB3 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.4% C 0.134 H 274.2°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#515EB3
RGB	rgb(81, 94, 179)
HSL	hsl(232, 39%, 51%)
HSV	hsv(232, 55%, 70%)
CMYK	cmyk(54.7%, 47.5%, 0%, 29.8%)
CIE-LAB	lab(42.78, 20.00, -46.90)
CIE-LCH	lch(42.78, 50.98, 293.10°)
OKLab	oklab(51.43% 0.0098 -0.1336)
OKLCH	oklch(51.43% 0.134 274.2)
XYZ	xyz(15.5301, 13.0083, 44.3316)
Luminance	0.1301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515EB3 #B3A651

analogous

#518FB3 #515EB3 #7551B3

triadic

#515EB3 #B3515E #5EB351

tetradic

#515EB3 #B3518F #B3A651 #51B375

square

#515EB3 #B3518F #B3A651 #51B375

split-complementary

#515EB3 #B37551 #8FB351

monochromatic

#2A3160 #3C478A #515EB3 #7C85C6 #A6ADD8

Accessibility & contrast

On white

5.83

#515EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#515EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515EB3

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515EB3	#FFFFFF	#000000	##FFFFFF
##515EB3	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3769B6

Deuteranopia (green-blind)

#2B61B1

Tritanopia (blue-blind)

#207180

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #515eb3;
/* rgb */ color: rgb(81, 94, 179);
/* oklch */ color: oklch(51.4% 0.134 274.2);

Tailwind

colors: {
  custom: {
    50: '#898bca',
    500: '#515eb3',
    950: '#000000',
  },
}

SCSS

$custom: #515eb3;
$custom-light: #898bca;
$custom-dark: #000000;

JSON

{
  "hex": "#515eb3",
  "rgb": {
    "r": 81,
    "g": 94,
    "b": 179
  },
  "hsl": {
    "h": 232.041,
    "s": 39.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.51426,
    "c": 0.13399,
    "h": 274.2
  },
  "luminance": 0.13009
}

Semantic roles & 50–950 ramp

primary

#515EB3

secondary

#C6C09A

accent

#BF59CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #515EB3

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

Preview Lab → · Contrast checker → · Palette generator →