#555C8F#555C8F

#555C8F is a mid, moderate blue. Relative luminance 0.116; OKLCH L 49.1% C 0.082 H 277.0°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#555C8F
RGB	rgb(85, 92, 143)
HSL	hsl(233, 25%, 45%)
HSV	hsv(233, 41%, 56%)
CMYK	cmyk(40.6%, 35.7%, 0%, 43.9%)
CIE-LAB	lab(40.52, 10.84, -29.05)
CIE-LCH	lch(40.52, 31.01, 290.47°)
OKLab	oklab(49.13% 0.01 -0.0814)
OKLCH	oklch(49.13% 0.082 277)
XYZ	xyz(12.5299, 11.5682, 27.5540)
Luminance	0.1157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555C8F #8F8855

analogous

#55798F #555C8F #6B558F

triadic

#555C8F #8F555C #5C8F55

tetradic

#555C8F #8F5579 #8F8855 #558F6B

square

#555C8F #8F5579 #8F8855 #558F6B

split-complementary

#555C8F #8F6B55 #798F55

monochromatic

#272B42 #3E4369 #555C8F #757BAD #9BA0C4

Accessibility & contrast

On white

6.34

#555C8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#555C8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555C8F

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555C8F	#FFFFFF	#000000	##FFFFFF
##555C8F	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B6291

Deuteranopia (green-blind)

#475D8E

Tritanopia (blue-blind)

#43666F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #555c8f;
/* rgb */ color: rgb(85, 92, 143);
/* oklch */ color: oklch(49.1% 0.082 277.0);

Tailwind

colors: {
  custom: {
    50: '#878ab0',
    500: '#555c8f',
    950: '#000000',
  },
}

SCSS

$custom: #555c8f;
$custom-light: #878ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#555c8f",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 143
  },
  "hsl": {
    "h": 232.759,
    "s": 25.439,
    "l": 44.706
  },
  "oklch": {
    "l": 0.49128,
    "c": 0.08203,
    "h": 277
  },
  "luminance": 0.11569
}

Semantic roles & 50–950 ramp

primary

#555C8F

secondary

#B1AD8F

accent

#B766C2

background

#F8F8FA

surface

#F0F0F4

border

#CBCBCE

text

#0B0B10

muted

#7C7C7F

Preview Lab

Preview with #555C8F

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

Preview Lab → · Contrast checker → · Palette generator →