#515AB0#515AB0

#515AB0 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.4% C 0.135 H 275.9°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#515AB0
RGB	rgb(81, 90, 176)
HSL	hsl(234, 38%, 50%)
HSV	hsv(234, 54%, 69%)
CMYK	cmyk(54%, 48.9%, 0%, 31%)
CIE-LAB	lab(41.52, 21.55, -47.14)
CIE-LCH	lch(41.52, 51.83, 294.57°)
OKLab	oklab(50.42% 0.014 -0.1344)
OKLCH	oklch(50.42% 0.135 275.9)
XYZ	xyz(14.8835, 12.1953, 42.6355)
Luminance	0.1220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515AB0 #B0A751

analogous

#5189B0 #515AB0 #7851B0

triadic

#515AB0 #B0515A #5AB051

tetradic

#515AB0 #B05189 #B0A751 #51B078

square

#515AB0 #B05189 #B0A751 #51B078

split-complementary

#515AB0 #B07851 #89B051

monochromatic

#2A2F5D #3D4487 #515AB0 #7B82C3 #A5AAD6

Accessibility & contrast

On white

6.11

#515AB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#515AB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515AB0

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515AB0	#FFFFFF	#000000	##FFFFFF
##515AB0	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3166B3

Deuteranopia (green-blind)

#265EAE

Tritanopia (blue-blind)

#246D7C

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #515ab0;
/* rgb */ color: rgb(81, 90, 176);
/* oklch */ color: oklch(50.4% 0.135 275.9);

Tailwind

colors: {
  custom: {
    50: '#8988c8',
    500: '#515ab0',
    950: '#000000',
  },
}

SCSS

$custom: #515ab0;
$custom-light: #8988c8;
$custom-dark: #000000;

JSON

{
  "hex": "#515ab0",
  "rgb": {
    "r": 81,
    "g": 90,
    "b": 176
  },
  "hsl": {
    "h": 234.316,
    "s": 37.549,
    "l": 50.392
  },
  "oklch": {
    "l": 0.50418,
    "c": 0.1351,
    "h": 275.9
  },
  "luminance": 0.12196
}

Semantic roles & 50–950 ramp

primary

#515AB0

secondary

#C4C099

accent

#C35ACE

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #515AB0

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

Preview Lab → · Contrast checker → · Palette generator →