#515D9D#515D9D

#515D9D is a mid, moderate blue. Relative luminance 0.120; OKLCH L 49.8% C 0.103 H 274.1°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#515D9D
RGB	rgb(81, 93, 157)
HSL	hsl(231, 32%, 47%)
HSV	hsv(231, 48%, 62%)
CMYK	cmyk(48.4%, 40.8%, 0%, 38.4%)
CIE-LAB	lab(41.23, 13.48, -36.34)
CIE-LCH	lch(41.23, 38.76, 290.34°)
OKLab	oklab(49.84% 0.0073 -0.1027)
OKLCH	oklch(49.84% 0.103 274.1)
XYZ	xyz(13.3916, 12.0116, 33.5046)
Luminance	0.1201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515D9D #9D9151

analogous

#51839D #515D9D #6B519D

triadic

#515D9D #9D515D #5D9D51

tetradic

#515D9D #9D5183 #9D9151 #519D6B

square

#515D9D #9D5183 #9D9151 #519D6B

split-complementary

#515D9D #9D6B51 #839D51

monochromatic

#272D4C #3C4575 #515D9D #747FB7 #9CA4CC

Accessibility & contrast

On white

6.17

#515D9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#515D9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515D9D

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515D9D	#FFFFFF	#000000	##FFFFFF
##515D9D	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45659F

Deuteranopia (green-blind)

#3E5E9C

Tritanopia (blue-blind)

#346A75

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #515d9d;
/* rgb */ color: rgb(81, 93, 157);
/* oklch */ color: oklch(49.8% 0.103 274.1);

Tailwind

colors: {
  custom: {
    50: '#868aba',
    500: '#515d9d',
    950: '#000000',
  },
}

SCSS

$custom: #515d9d;
$custom-light: #868aba;
$custom-dark: #000000;

JSON

{
  "hex": "#515d9d",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 157
  },
  "hsl": {
    "h": 230.526,
    "s": 31.933,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49838,
    "c": 0.10298,
    "h": 274.1
  },
  "luminance": 0.12012
}

Semantic roles & 50–950 ramp

primary

#515D9D

secondary

#B9B391

accent

#B860C8

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0B0B11

muted

#7C7C80

Preview Lab

Preview with #515D9D

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

Preview Lab → · Contrast checker → · Palette generator →