#515AA8#515AA8

#515AA8 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.9% C 0.123 H 276.0°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#515AA8
RGB	rgb(81, 90, 168)
HSL	hsl(234, 35%, 49%)
HSV	hsv(234, 52%, 66%)
CMYK	cmyk(51.8%, 46.4%, 0%, 34.1%)
CIE-LAB	lab(41.04, 18.93, -43.19)
CIE-LCH	lch(41.04, 47.16, 293.67°)
OKLab	oklab(49.89% 0.0129 -0.1228)
OKLCH	oklch(49.89% 0.123 276)
XYZ	xyz(14.1152, 11.8879, 38.5890)
Luminance	0.1189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515AA8 #A89F51

analogous

#5186A8 #515AA8 #7451A8

triadic

#515AA8 #A8515A #5AA851

tetradic

#515AA8 #A85186 #A89F51 #51A874

square

#515AA8 #A85186 #A89F51 #51A874

split-complementary

#515AA8 #A87451 #86A851

monochromatic

#292E55 #3D447F #515AA8 #787FBE #A1A6D2

Accessibility & contrast

On white

6.22

#515AA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#515AA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515AA8

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515AA8	#FFFFFF	#000000	##FFFFFF
##515AA8	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3864AB

Deuteranopia (green-blind)

#2F5DA6

Tritanopia (blue-blind)

#2C6B79

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #515aa8;
/* rgb */ color: rgb(81, 90, 168);
/* oklch */ color: oklch(49.9% 0.123 276.0);

Tailwind

colors: {
  custom: {
    50: '#8888c2',
    500: '#515aa8',
    950: '#000000',
  },
}

SCSS

$custom: #515aa8;
$custom-light: #8888c2;
$custom-dark: #000000;

JSON

{
  "hex": "#515aa8",
  "rgb": {
    "r": 81,
    "g": 90,
    "b": 168
  },
  "hsl": {
    "h": 233.793,
    "s": 34.94,
    "l": 48.824
  },
  "oklch": {
    "l": 0.49891,
    "c": 0.12348,
    "h": 276
  },
  "luminance": 0.11889
}

Semantic roles & 50–950 ramp

primary

#515AA8

secondary

#BFBB96

accent

#C05DCB

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0C0B12

muted

#7D7C81

Preview Lab

Preview with #515AA8

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

Preview Lab → · Contrast checker → · Palette generator →