#515AB9#515AB9

#515AB9 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.0% C 0.148 H 275.8°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#515AB9
RGB	rgb(81, 90, 185)
HSL	hsl(235, 43%, 52%)
HSV	hsv(235, 56%, 73%)
CMYK	cmyk(56.2%, 51.4%, 0%, 27.5%)
CIE-LAB	lab(42.10, 24.52, -51.50)
CIE-LCH	lch(42.10, 57.04, 295.46°)
OKLab	oklab(51.04% 0.0149 -0.1472)
OKLCH	oklch(51.04% 0.148 275.8)
XYZ	xyz(15.8036, 12.5633, 47.4817)
Luminance	0.1256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515AB9 #B9B051

analogous

#518EB9 #515AB9 #7C51B9

triadic

#515AB9 #B9515A #5AB951

tetradic

#515AB9 #B9518E #B9B051 #51B97C

square

#515AB9 #B9518E #B9B051 #51B97C

split-complementary

#515AB9 #B97C51 #8EB951

monochromatic

#292E66 #3B4292 #515AB9 #7D83CB #A8ADDC

Accessibility & contrast

On white

5.98

#515AB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#515AB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515AB9

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515AB9	#FFFFFF	#000000	##FFFFFF
##515AB9	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2868BC

Deuteranopia (green-blind)

#155FB7

Tritanopia (blue-blind)

#176F81

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #515ab9;
/* rgb */ color: rgb(81, 90, 185);
/* oklch */ color: oklch(51.0% 0.148 275.8);

Tailwind

colors: {
  custom: {
    50: '#8a88cf',
    500: '#515ab9',
    950: '#000000',
  },
}

SCSS

$custom: #515ab9;
$custom-light: #8a88cf;
$custom-dark: #000000;

JSON

{
  "hex": "#515ab9",
  "rgb": {
    "r": 81,
    "g": 90,
    "b": 185
  },
  "hsl": {
    "h": 234.808,
    "s": 42.623,
    "l": 52.157
  },
  "oklch": {
    "l": 0.51035,
    "c": 0.14794,
    "h": 275.8
  },
  "luminance": 0.12564
}

Semantic roles & 50–950 ramp

primary

#515AB9

secondary

#CAC69C

accent

#C855D2

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #515AB9

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

Preview Lab → · Contrast checker → · Palette generator →