#515D8D#515D8D

#515D8D is a mid, moderate blue. Relative luminance 0.115; OKLCH L 48.9% C 0.079 H 272.5°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#515D8D
RGB	rgb(81, 93, 141)
HSL	hsl(228, 27%, 44%)
HSV	hsv(228, 43%, 55%)
CMYK	cmyk(42.6%, 34%, 0%, 44.7%)
CIE-LAB	lab(40.41, 8.47, -28.04)
CIE-LCH	lch(40.41, 29.29, 286.81°)
OKLab	oklab(48.93% 0.0034 -0.0786)
OKLCH	oklch(48.93% 0.079 272.5)
XYZ	xyz(12.1139, 11.5005, 26.7757)
Luminance	0.1150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515D8D #8D8151

analogous

#517B8D #515D8D #63518D

triadic

#515D8D #8D515D #5D8D51

tetradic

#515D8D #8D517B #8D8151 #518D63

square

#515D8D #8D517B #8D8151 #518D63

split-complementary

#515D8D #8D6351 #7B8D51

monochromatic

#242A3F #3B4366 #515D8D #6F7BAC #969FC3

Accessibility & contrast

On white

6.36

#515D8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#515D8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515D8D

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515D8D	#FFFFFF	#000000	##FFFFFF
##515D8D	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C628F

Deuteranopia (green-blind)

#475D8C

Tritanopia (blue-blind)

#3D676E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #515d8d;
/* rgb */ color: rgb(81, 93, 141);
/* oklch */ color: oklch(48.9% 0.079 272.5);

Tailwind

colors: {
  custom: {
    50: '#848aae',
    500: '#515d8d',
    950: '#000000',
  },
}

SCSS

$custom: #515d8d;
$custom-light: #848aae;
$custom-dark: #000000;

JSON

{
  "hex": "#515d8d",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 141
  },
  "hsl": {
    "h": 228,
    "s": 27.027,
    "l": 43.529
  },
  "oklch": {
    "l": 0.48934,
    "c": 0.07864,
    "h": 272.5
  },
  "luminance": 0.11501
}

Semantic roles & 50–950 ramp

primary

#515D8D

secondary

#AFA88A

accent

#B064C3

background

#F8F8FA

surface

#EFF0F4

border

#CACBCE

text

#0B0B10

muted

#7C7C7F

Preview Lab

Preview with #515D8D

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

Preview Lab → · Contrast checker → · Palette generator →