#555AC7#555AC7

#555AC7 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.3% C 0.166 H 277.0°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#555AC7
RGB	rgb(85, 90, 199)
HSL	hsl(237, 50%, 56%)
HSV	hsv(237, 57%, 78%)
CMYK	cmyk(57.3%, 54.8%, 0%, 22%)
CIE-LAB	lab(43.31, 29.93, -57.67)
CIE-LCH	lch(43.31, 64.97, 297.43°)
OKLab	oklab(52.31% 0.0203 -0.1652)
OKLCH	oklch(52.31% 0.166 277)
XYZ	xyz(17.7080, 13.3659, 55.6685)
Luminance	0.1337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555AC7 #C7C255

analogous

#5593C7 #555AC7 #8955C7

triadic

#555AC7 #C7555A #5AC755

tetradic

#555AC7 #C75593 #C7C255 #55C789

square

#555AC7 #C75593 #C7C255 #55C789

split-complementary

#555AC7 #C78955 #93C755

monochromatic

#282C7A #373CA8 #555AC7 #8387D6 #B1B3E5

Accessibility & contrast

On white

5.72

#555AC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#555AC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555AC7

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555AC7	#FFFFFF	#000000	##FFFFFF
##555AC7	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E6BCB

Deuteranopia (green-blind)

#0062C5

Tritanopia (blue-blind)

#0D7388

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #555ac7;
/* rgb */ color: rgb(85, 90, 199);
/* oklch */ color: oklch(52.3% 0.166 277.0);

Tailwind

colors: {
  custom: {
    50: '#8f88d9',
    500: '#555ac7',
    950: '#000000',
  },
}

SCSS

$custom: #555ac7;
$custom-light: #8f88d9;
$custom-dark: #000000;

JSON

{
  "hex": "#555ac7",
  "rgb": {
    "r": 85,
    "g": 90,
    "b": 199
  },
  "hsl": {
    "h": 237.368,
    "s": 50.442,
    "l": 55.686
  },
  "oklch": {
    "l": 0.52313,
    "c": 0.16648,
    "h": 277
  },
  "luminance": 0.13367
}

Semantic roles & 50–950 ramp

primary

#555AC7

secondary

#D4D2A4

accent

#D44EDA

background

#F9F8FD

surface

#F2EFFA

border

#CCCAD3

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #555AC7

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

Preview Lab → · Contrast checker → · Palette generator →