#555FBF#555FBF

#555FBF is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.7% C 0.149 H 275.6°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#555FBF
RGB	rgb(85, 95, 191)
HSL	hsl(234, 45%, 54%)
HSV	hsv(234, 55%, 75%)
CMYK	cmyk(55.5%, 50.3%, 0%, 25.1%)
CIE-LAB	lab(44.05, 24.17, -51.83)
CIE-LCH	lch(44.05, 57.19, 295.00°)
OKLab	oklab(52.7% 0.0145 -0.148)
OKLCH	oklch(52.7% 0.149 275.6)
XYZ	xyz(17.2395, 13.8761, 51.0500)
Luminance	0.1388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FBF #BFB555

analogous

#5594BF #555FBF #8055BF

triadic

#555FBF #BF555F #5FBF55

tetradic

#555FBF #BF5594 #BFB555 #55BF80

square

#555FBF #BF5594 #BFB555 #55BF80

split-complementary

#555FBF #BF8055 #94BF55

monochromatic

#2A3170 #3B449C #555FBF #8189D0 #AEB3E0

Accessibility & contrast

On white

5.56

#555FBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#555FBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FBF

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FBF	#FFFFFF	#000000	##FFFFFF
##555FBF	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E6DC2

Deuteranopia (green-blind)

#1E64BD

Tritanopia (blue-blind)

#1D7586

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #555fbf;
/* rgb */ color: rgb(85, 95, 191);
/* oklch */ color: oklch(52.7% 0.149 275.6);

Tailwind

colors: {
  custom: {
    50: '#8d8cd3',
    500: '#555fbf',
    950: '#000000',
  },
}

SCSS

$custom: #555fbf;
$custom-light: #8d8cd3;
$custom-dark: #000000;

JSON

{
  "hex": "#555fbf",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 191
  },
  "hsl": {
    "h": 234.34,
    "s": 45.299,
    "l": 54.118
  },
  "oklch": {
    "l": 0.52704,
    "c": 0.14874,
    "h": 275.6
  },
  "luminance": 0.13877
}

Semantic roles & 50–950 ramp

primary

#555FBF

secondary

#CECAA1

accent

#C953D5

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0C14

muted

#7E7D83

Preview Lab

Preview with #555FBF

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

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