#515B9D#515B9D

#515B9D is a mid, moderate blue. Relative luminance 0.117; OKLCH L 49.4% C 0.106 H 275.3°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#515B9D
RGB	rgb(81, 91, 157)
HSL	hsl(232, 32%, 47%)
HSV	hsv(232, 48%, 62%)
CMYK	cmyk(48.4%, 42%, 0%, 38.4%)
CIE-LAB	lab(40.68, 14.74, -37.22)
CIE-LCH	lch(40.68, 40.04, 291.61°)
OKLab	oklab(49.41% 0.0098 -0.1053)
OKLCH	oklch(49.41% 0.106 275.3)
XYZ	xyz(13.2183, 11.6651, 33.4468)
Luminance	0.1167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515B9D #9D9351

analogous

#51819D #515B9D #6D519D

triadic

#515B9D #9D515B #5B9D51

tetradic

#515B9D #9D5181 #9D9351 #519D6D

square

#515B9D #9D5181 #9D9351 #519D6D

split-complementary

#515B9D #9D6D51 #819D51

monochromatic

#272C4C #3C4475 #515B9D #747DB7 #9CA3CC

Accessibility & contrast

On white

6.30

#515B9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#515B9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515B9D

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515B9D	#FFFFFF	#000000	##FFFFFF
##515B9D	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4163A0

Deuteranopia (green-blind)

#3B5D9C

Tritanopia (blue-blind)

#356974

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #515b9d;
/* rgb */ color: rgb(81, 91, 157);
/* oklch */ color: oklch(49.4% 0.106 275.3);

Tailwind

colors: {
  custom: {
    50: '#8689ba',
    500: '#515b9d',
    950: '#000000',
  },
}

SCSS

$custom: #515b9d;
$custom-light: #8689ba;
$custom-dark: #000000;

JSON

{
  "hex": "#515b9d",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 157
  },
  "hsl": {
    "h": 232.105,
    "s": 31.933,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49413,
    "c": 0.10576,
    "h": 275.3
  },
  "luminance": 0.11666
}

Semantic roles & 50–950 ramp

primary

#515B9D

secondary

#B9B491

accent

#BA60C8

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0B0B11

muted

#7C7C80

Preview Lab

Preview with #515B9D

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

Preview Lab → · Contrast checker → · Palette generator →