#555FD9#555FD9

#555FD9 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.6% C 0.184 H 275.0°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#555FD9
RGB	rgb(85, 95, 217)
HSL	hsl(235, 63%, 59%)
HSV	hsv(235, 61%, 85%)
CMYK	cmyk(60.8%, 56.2%, 0%, 14.9%)
CIE-LAB	lab(45.80, 32.77, -63.96)
CIE-LCH	lch(45.80, 71.86, 297.13°)
OKLab	oklab(54.57% 0.0159 -0.1837)
OKLCH	oklch(54.57% 0.184 275)
XYZ	xyz(20.3588, 15.1238, 67.4785)
Luminance	0.1512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FD9 #D9CF55

analogous

#55A1D9 #555FD9 #8D55D9

triadic

#555FD9 #D9555F #5FD955

tetradic

#555FD9 #D955A1 #D9CF55 #55D98D

square

#555FD9 #D955A1 #D9CF55 #55D98D

split-complementary

#555FD9 #D98D55 #A1D955

monochromatic

#212993 #2C38C5 #555FD9 #878EE4 #B9BDEF

Accessibility & contrast

On white

5.22

#555FD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#555FD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FD9

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FD9	#FFFFFF	#000000	##FFFFFF
##555FD9	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072DD

Deuteranopia (green-blind)

#0067D7

Tritanopia (blue-blind)

#007C93

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #555fd9;
/* rgb */ color: rgb(85, 95, 217);
/* oklch */ color: oklch(54.6% 0.184 275.0);

Tailwind

colors: {
  custom: {
    50: '#918ce6',
    500: '#555fd9',
    950: '#000000',
  },
}

SCSS

$custom: #555fd9;
$custom-light: #918ce6;
$custom-dark: #000000;

JSON

{
  "hex": "#555fd9",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 217
  },
  "hsl": {
    "h": 235.455,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.54572,
    "c": 0.1844,
    "h": 275
  },
  "luminance": 0.15125
}

Semantic roles & 50–950 ramp

primary

#555FD9

secondary

#DFDBAB

accent

#DA41E6

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #555FD9

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

Preview Lab → · Contrast checker → · Palette generator →