#555A8F#555A8F

#555A8F is a mid, moderate blue. Relative luminance 0.112; OKLCH L 48.7% C 0.085 H 278.6°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#555A8F
RGB	rgb(85, 90, 143)
HSL	hsl(235, 25%, 45%)
HSV	hsv(235, 41%, 56%)
CMYK	cmyk(40.6%, 37.1%, 0%, 43.9%)
CIE-LAB	lab(39.96, 12.11, -29.94)
CIE-LCH	lch(39.96, 32.29, 292.02°)
OKLab	oklab(48.7% 0.0127 -0.084)
OKLCH	oklch(48.7% 0.085 278.6)
XYZ	xyz(12.3590, 11.2263, 27.4970)
Luminance	0.1123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555A8F #8F8A55

analogous

#55778F #555A8F #6D558F

triadic

#555A8F #8F555A #5A8F55

tetradic

#555A8F #8F5577 #8F8A55 #558F6D

square

#555A8F #8F5577 #8F8A55 #558F6D

split-complementary

#555A8F #8F6D55 #778F55

monochromatic

#272A42 #3E4269 #555A8F #7579AD #9B9EC4

Accessibility & contrast

On white

6.47

#555A8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#555A8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555A8F

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555A8F	#FFFFFF	#000000	##FFFFFF
##555A8F	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#486091

Deuteranopia (green-blind)

#455C8E

Tritanopia (blue-blind)

#44646E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #555a8f;
/* rgb */ color: rgb(85, 90, 143);
/* oklch */ color: oklch(48.7% 0.085 278.6);

Tailwind

colors: {
  custom: {
    50: '#8788b0',
    500: '#555a8f',
    950: '#000000',
  },
}

SCSS

$custom: #555a8f;
$custom-light: #8788b0;
$custom-dark: #000000;

JSON

{
  "hex": "#555a8f",
  "rgb": {
    "r": 85,
    "g": 90,
    "b": 143
  },
  "hsl": {
    "h": 234.828,
    "s": 25.439,
    "l": 44.706
  },
  "oklch": {
    "l": 0.48695,
    "c": 0.08494,
    "h": 278.6
  },
  "luminance": 0.11227
}

Semantic roles & 50–950 ramp

primary

#555A8F

secondary

#B1AE8F

accent

#BA66C2

background

#F8F8FA

surface

#F0EFF4

border

#CBCACE

text

#0B0B10

muted

#7C7C7F

Preview Lab

Preview with #555A8F

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

Preview Lab → · Contrast checker → · Palette generator →