#556D99#556D99

#556D99 is a mid, moderate blue. Relative luminance 0.152; OKLCH L 53.4% C 0.075 H 262.1°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#556D99
RGB	rgb(85, 109, 153)
HSL	hsl(219, 29%, 47%)
HSV	hsv(219, 44%, 60%)
CMYK	cmyk(44.4%, 28.8%, 0%, 40%)
CIE-LAB	lab(45.86, 3.33, -26.68)
CIE-LCH	lch(45.86, 26.89, 277.11°)
OKLab	oklab(53.43% -0.0103 -0.0745)
OKLCH	oklch(53.43% 0.075 262.1)
XYZ	xyz(14.9629, 15.1676, 32.2700)
Luminance	0.1517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556D99 #998155

analogous

#558F99 #556D99 #5F5599

triadic

#556D99 #99556D #6D9955

tetradic

#556D99 #99558F #998155 #55995F

square

#556D99 #99558F #998155 #55995F

split-complementary

#556D99 #995F55 #8F9955

monochromatic

#29354A #3F5172 #556D99 #778DB4 #9FAECA

Accessibility & contrast

On white

5.21

#556D99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#556D99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556D99

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556D99	#FFFFFF	#000000	##FFFFFF
##556D99	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D709B

Deuteranopia (green-blind)

#566A98

Tritanopia (blue-blind)

#3C767C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #556d99;
/* rgb */ color: rgb(85, 109, 153);
/* oklch */ color: oklch(53.4% 0.075 262.1);

Tailwind

colors: {
  custom: {
    50: '#8896b7',
    500: '#556d99',
    950: '#000000',
  },
}

SCSS

$custom: #556d99;
$custom-light: #8896b7;
$custom-dark: #000000;

JSON

{
  "hex": "#556d99",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 153
  },
  "hsl": {
    "h": 218.824,
    "s": 28.571,
    "l": 46.667
  },
  "oklch": {
    "l": 0.53426,
    "c": 0.07525,
    "h": 262.1
  },
  "luminance": 0.15168
}

Semantic roles & 50–950 ramp

primary

#556D99

secondary

#B7AA93

accent

#A263C5

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0D11

muted

#7D7E80

Preview Lab

Preview with #556D99

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

Preview Lab → · Contrast checker → · Palette generator →