#556A8B#556A8B

#556A8B is a mid, muted blue. Relative luminance 0.141; OKLCH L 52.1% C 0.058 H 259.3°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#556A8B
RGB	rgb(85, 106, 139)
HSL	hsl(217, 24%, 44%)
HSV	hsv(217, 39%, 55%)
CMYK	cmyk(38.8%, 23.7%, 0%, 45.5%)
CIE-LAB	lab(44.38, 1.00, -20.65)
CIE-LCH	lch(44.38, 20.68, 272.77°)
OKLab	oklab(52.07% -0.0108 -0.0573)
OKLCH	oklch(52.07% 0.058 259.3)
XYZ	xyz(13.5591, 14.1028, 26.4288)
Luminance	0.1410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556A8B #8B7655

analogous

#55858B #556A8B #5B558B

triadic

#556A8B #8B556A #6A8B55

tetradic

#556A8B #8B5585 #8B7655 #558B5B

square

#556A8B #8B5585 #8B7655 #558B5B

split-complementary

#556A8B #8B5B55 #858B55

monochromatic

#27303F #3E4D65 #556A8B #7489AA #99A9C1

Accessibility & contrast

On white

5.50

#556A8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#556A8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556A8B

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556A8B	#FFFFFF	#000000	##FFFFFF
##556A8B	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E6C8D

Deuteranopia (green-blind)

#58678A

Tritanopia (blue-blind)

#437175

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #556a8b;
/* rgb */ color: rgb(85, 106, 139);
/* oklch */ color: oklch(52.1% 0.058 259.3);

Tailwind

colors: {
  custom: {
    50: '#8794ad',
    500: '#556a8b',
    950: '#000000',
  },
}

SCSS

$custom: #556a8b;
$custom-light: #8794ad;
$custom-dark: #000000;

JSON

{
  "hex": "#556a8b",
  "rgb": {
    "r": 85,
    "g": 106,
    "b": 139
  },
  "hsl": {
    "h": 216.667,
    "s": 24.107,
    "l": 43.922
  },
  "oklch": {
    "l": 0.52066,
    "c": 0.05829,
    "h": 259.3
  },
  "luminance": 0.14103
}

Semantic roles & 50–950 ramp

primary

#556A8B

secondary

#AEA28E

accent

#9E67C1

background

#F8F9FA

surface

#F0F1F4

border

#CBCBCE

text

#0B0D10

muted

#7C7E7F

Preview Lab

Preview with #556A8B

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

Preview Lab → · Contrast checker → · Palette generator →