#555D8A#555D8A

#555D8A is a mid, moderate blue. Relative luminance 0.116; OKLCH L 49.1% C 0.073 H 275.7°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#555D8A
RGB	rgb(85, 93, 138)
HSL	hsl(231, 24%, 44%)
HSV	hsv(231, 38%, 54%)
CMYK	cmyk(38.4%, 32.6%, 0%, 45.9%)
CIE-LAB	lab(40.56, 8.73, -25.97)
CIE-LCH	lch(40.56, 27.40, 288.58°)
OKLab	oklab(49.08% 0.0072 -0.0725)
OKLCH	oklch(49.08% 0.073 275.7)
XYZ	xyz(12.2468, 11.5945, 25.6325)
Luminance	0.1159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555D8A #8A8255

analogous

#55778A #555D8A #67558A

triadic

#555D8A #8A555D #5D8A55

tetradic

#555D8A #8A5577 #8A8255 #558A67

square

#555D8A #8A5577 #8A8255 #558A67

split-complementary

#555D8A #8A6755 #778A55

monochromatic

#262A3E #3E4364 #555D8A #737BA9 #999FC0

Accessibility & contrast

On white

6.33

#555D8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#555D8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555D8A

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555D8A	#FFFFFF	#000000	##FFFFFF
##555D8A	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E628C

Deuteranopia (green-blind)

#4B5E89

Tritanopia (blue-blind)

#45666D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #555d8a;
/* rgb */ color: rgb(85, 93, 138);
/* oklch */ color: oklch(49.1% 0.073 275.7);

Tailwind

colors: {
  custom: {
    50: '#878aac',
    500: '#555d8a',
    950: '#000000',
  },
}

SCSS

$custom: #555d8a;
$custom-light: #878aac;
$custom-dark: #000000;

JSON

{
  "hex": "#555d8a",
  "rgb": {
    "r": 85,
    "g": 93,
    "b": 138
  },
  "hsl": {
    "h": 230.943,
    "s": 23.767,
    "l": 43.725
  },
  "oklch": {
    "l": 0.49081,
    "c": 0.07286,
    "h": 275.7
  },
  "luminance": 0.11595
}

Semantic roles & 50–950 ramp

primary

#555D8A

secondary

#AEA98D

accent

#B368C0

background

#F8F8FA

surface

#F0F0F4

border

#CBCBCE

text

#0B0B10

muted

#7C7C7F

Preview Lab

Preview with #555D8A

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

Preview Lab → · Contrast checker → · Palette generator →