#555ECE#555ECE

#555ECE is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.6% C 0.171 H 275.6°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#555ECE
RGB	rgb(85, 94, 206)
HSL	hsl(236, 55%, 57%)
HSV	hsv(236, 59%, 81%)
CMYK	cmyk(58.7%, 54.4%, 0%, 19.2%)
CIE-LAB	lab(44.79, 29.75, -59.31)
CIE-LCH	lch(44.79, 66.35, 296.64°)
OKLab	oklab(53.57% 0.0165 -0.17)
OKLCH	oklch(53.57% 0.171 275.6)
XYZ	xyz(18.8860, 14.3915, 60.1632)
Luminance	0.1439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555ECE #CEC555

analogous

#559BCE #555ECE #8955CE

triadic

#555ECE #CE555E #5ECE55

tetradic

#555ECE #CE559B #CEC555 #55CE89

square

#555ECE #CE559B #CEC555 #55CE89

split-complementary

#555ECE #CE8955 #9BCE55

monochromatic

#262D83 #333DB2 #555ECE #858BDC #B4B8E9

Accessibility & contrast

On white

5.41

#555ECE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#555ECE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555ECE

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555ECE	#FFFFFF	#000000	##FFFFFF
##555ECE	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#106FD2

Deuteranopia (green-blind)

#0065CC

Tritanopia (blue-blind)

#00788D

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #555ece;
/* rgb */ color: rgb(85, 94, 206);
/* oklch */ color: oklch(53.6% 0.171 275.6);

Tailwind

colors: {
  custom: {
    50: '#8f8bde',
    500: '#555ece',
    950: '#000000',
  },
}

SCSS

$custom: #555ece;
$custom-light: #8f8bde;
$custom-dark: #000000;

JSON

{
  "hex": "#555ece",
  "rgb": {
    "r": 85,
    "g": 94,
    "b": 206
  },
  "hsl": {
    "h": 235.537,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.53572,
    "c": 0.17083,
    "h": 275.6
  },
  "luminance": 0.14393
}

Semantic roles & 50–950 ramp

primary

#555ECE

secondary

#D8D4A7

accent

#D349DF

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #555ECE

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

Preview Lab → · Contrast checker → · Palette generator →