#555FD8#555FD8

#555FD8 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.5% C 0.183 H 275.0°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#555FD8
RGB	rgb(85, 95, 216)
HSL	hsl(235, 63%, 59%)
HSV	hsv(235, 61%, 85%)
CMYK	cmyk(60.6%, 56%, 0%, 15.3%)
CIE-LAB	lab(45.73, 32.44, -63.50)
CIE-LCH	lch(45.73, 71.31, 297.06°)
OKLab	oklab(54.5% 0.0159 -0.1824)
OKLCH	oklch(54.5% 0.183 275)
XYZ	xyz(20.2291, 15.0720, 66.7956)
Luminance	0.1507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FD8 #D8CE55

analogous

#55A1D8 #555FD8 #8D55D8

triadic

#555FD8 #D8555F #5FD855

tetradic

#555FD8 #D855A1 #D8CE55 #55D88D

square

#555FD8 #D855A1 #D8CE55 #55D88D

split-complementary

#555FD8 #D88D55 #A1D855

monochromatic

#212A91 #2D38C3 #555FD8 #878EE3 #B9BDEF

Accessibility & contrast

On white

5.23

#555FD8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#555FD8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FD8

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FD8	#FFFFFF	#000000	##FFFFFF
##555FD8	1.00	5.23	4.01	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072DC

Deuteranopia (green-blind)

#0067D6

Tritanopia (blue-blind)

#007C92

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #555fd8;
/* rgb */ color: rgb(85, 95, 216);
/* oklch */ color: oklch(54.5% 0.183 275.0);

Tailwind

colors: {
  custom: {
    50: '#918ce5',
    500: '#555fd8',
    950: '#000000',
  },
}

SCSS

$custom: #555fd8;
$custom-light: #918ce5;
$custom-dark: #000000;

JSON

{
  "hex": "#555fd8",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 216
  },
  "hsl": {
    "h": 235.42,
    "s": 62.679,
    "l": 59.02
  },
  "oklch": {
    "l": 0.54497,
    "c": 0.18306,
    "h": 275
  },
  "luminance": 0.15074
}

Semantic roles & 50–950 ramp

primary

#555FD8

secondary

#DEDAAB

accent

#D942E6

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #555FD8

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

Preview Lab → · Contrast checker → · Palette generator →