#555FAC#555FAC

#555FAC is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.5% C 0.121 H 275.7°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#555FAC
RGB	rgb(85, 95, 172)
HSL	hsl(233, 34%, 50%)
HSV	hsv(233, 51%, 67%)
CMYK	cmyk(50.6%, 44.8%, 0%, 32.5%)
CIE-LAB	lab(42.90, 17.99, -42.56)
CIE-LCH	lch(42.90, 46.21, 292.91°)
OKLab	oklab(51.46% 0.0121 -0.1208)
OKLCH	oklch(51.46% 0.121 275.7)
XYZ	xyz(15.2826, 13.0934, 40.7437)
Luminance	0.1309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FAC #ACA255

analogous

#558BAC #555FAC #7655AC

triadic

#555FAC #AC555F #5FAC55

tetradic

#555FAC #AC558B #ACA255 #55AC76

square

#555FAC #AC558B #ACA255 #55AC76

split-complementary

#555FAC #AC7655 #8BAC55

monochromatic

#2C315A #404884 #555FAC #7E86C0 #A7ACD4

Accessibility & contrast

On white

5.80

#555FAC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#555FAC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FAC

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FAC	#FFFFFF	#000000	##FFFFFF
##555FAC	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F69AF

Deuteranopia (green-blind)

#3762AA

Tritanopia (blue-blind)

#326F7D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #555fac;
/* rgb */ color: rgb(85, 95, 172);
/* oklch */ color: oklch(51.5% 0.121 275.7);

Tailwind

colors: {
  custom: {
    50: '#8a8cc5',
    500: '#555fac',
    950: '#000000',
  },
}

SCSS

$custom: #555fac;
$custom-light: #8a8cc5;
$custom-dark: #000000;

JSON

{
  "hex": "#555fac",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 172
  },
  "hsl": {
    "h": 233.103,
    "s": 34.387,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5146,
    "c": 0.12141,
    "h": 275.7
  },
  "luminance": 0.13094
}

Semantic roles & 50–950 ramp

primary

#555FAC

secondary

#C2BD9B

accent

#BE5DCA

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #555FAC

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

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