#555FD3#555FD3

#555FD3 is a mid, vivid blue. Relative luminance 0.148; OKLCH L 54.1% C 0.176 H 275.1°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#555FD3
RGB	rgb(85, 95, 211)
HSL	hsl(235, 59%, 58%)
HSV	hsv(235, 60%, 83%)
CMYK	cmyk(59.7%, 55%, 0%, 17.3%)
CIE-LAB	lab(45.38, 30.78, -61.21)
CIE-LCH	lch(45.38, 68.52, 296.69°)
OKLab	oklab(54.13% 0.0158 -0.1756)
OKLCH	oklch(54.13% 0.176 275.1)
XYZ	xyz(19.5926, 14.8173, 63.4430)
Luminance	0.1482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FD3 #D3C955

analogous

#559ED3 #555FD3 #8A55D3

triadic

#555FD3 #D3555F #5FD355

tetradic

#555FD3 #D3559E #D3C955 #55D38A

square

#555FD3 #D3559E #D3C955 #55D38A

split-complementary

#555FD3 #D38A55 #9ED355

monochromatic

#242C8A #303BBB #555FD3 #868DE0 #B6BBEC

Accessibility & contrast

On white

5.30

#555FD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#555FD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FD3

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FD3	#FFFFFF	#000000	##FFFFFF
##555FD3	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0371D7

Deuteranopia (green-blind)

#0066D1

Tritanopia (blue-blind)

#007A90

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #555fd3;
/* rgb */ color: rgb(85, 95, 211);
/* oklch */ color: oklch(54.1% 0.176 275.1);

Tailwind

colors: {
  custom: {
    50: '#908ce1',
    500: '#555fd3',
    950: '#000000',
  },
}

SCSS

$custom: #555fd3;
$custom-light: #908ce1;
$custom-dark: #000000;

JSON

{
  "hex": "#555fd3",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 211
  },
  "hsl": {
    "h": 235.238,
    "s": 58.879,
    "l": 58.039
  },
  "oklch": {
    "l": 0.54125,
    "c": 0.17634,
    "h": 275.1
  },
  "luminance": 0.14819
}

Semantic roles & 50–950 ramp

primary

#555FD3

secondary

#DBD7A9

accent

#D646E2

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #555FD3

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

Preview Lab → · Contrast checker → · Palette generator →