#555DAF#555DAF

#555DAF is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.2% C 0.129 H 276.7°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#555DAF
RGB	rgb(85, 93, 175)
HSL	hsl(235, 36%, 51%)
HSV	hsv(235, 51%, 69%)
CMYK	cmyk(51.4%, 46.9%, 0%, 31.4%)
CIE-LAB	lab(42.54, 20.22, -44.91)
CIE-LCH	lch(42.54, 49.25, 294.24°)
OKLab	oklab(51.24% 0.0149 -0.1277)
OKLCH	oklch(51.24% 0.129 276.7)
XYZ	xyz(15.3961, 12.8542, 42.2190)
Luminance	0.1285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555DAF #AFA755

analogous

#558AAF #555DAF #7A55AF

triadic

#555DAF #AF555D #5DAF55

tetradic

#555DAF #AF558A #AFA755 #55AF7A

square

#555DAF #AF558A #AFA755 #55AF7A

split-complementary

#555DAF #AF7A55 #8AAF55

monochromatic

#2C305E #404687 #555DAF #7F85C3 #A8ACD6

Accessibility & contrast

On white

5.88

#555DAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#555DAF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555DAF

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555DAF	#FFFFFF	#000000	##FFFFFF
##555DAF	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3968B2

Deuteranopia (green-blind)

#3061AD

Tritanopia (blue-blind)

#306F7D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #555daf;
/* rgb */ color: rgb(85, 93, 175);
/* oklch */ color: oklch(51.2% 0.129 276.7);

Tailwind

colors: {
  custom: {
    50: '#8b8ac7',
    500: '#555daf',
    950: '#000000',
  },
}

SCSS

$custom: #555daf;
$custom-light: #8b8ac7;
$custom-dark: #000000;

JSON

{
  "hex": "#555daf",
  "rgb": {
    "r": 85,
    "g": 93,
    "b": 175
  },
  "hsl": {
    "h": 234.667,
    "s": 36,
    "l": 50.98
  },
  "oklch": {
    "l": 0.51242,
    "c": 0.12857,
    "h": 276.7
  },
  "luminance": 0.12855
}

Semantic roles & 50–950 ramp

primary

#555DAF

secondary

#C4C09C

accent

#C25CCC

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #555DAF

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

Preview Lab → · Contrast checker → · Palette generator →