#555CCE#555CCE

#555CCE is a mid, vivid blue. Relative luminance 0.140; OKLCH L 53.2% C 0.173 H 276.1°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#555CCE
RGB	rgb(85, 92, 206)
HSL	hsl(237, 55%, 57%)
HSV	hsv(237, 59%, 81%)
CMYK	cmyk(58.7%, 55.3%, 0%, 19.2%)
CIE-LAB	lab(44.29, 30.99, -60.11)
CIE-LCH	lch(44.29, 67.63, 297.27°)
OKLab	oklab(53.2% 0.0185 -0.1724)
OKLCH	oklch(53.2% 0.173 276.1)
XYZ	xyz(18.7104, 14.0404, 60.1047)
Luminance	0.1404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CCE #CEC755

analogous

#5599CE #555CCE #8B55CE

triadic

#555CCE #CE555C #5CCE55

tetradic

#555CCE #CE5599 #CEC755 #55CE8B

square

#555CCE #CE5599 #CEC755 #55CE8B

split-complementary

#555CCE #CE8B55 #99CE55

monochromatic

#262B83 #333BB2 #555CCE #858ADC #B4B7E9

Accessibility & contrast

On white

5.51

#555CCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#555CCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CCE

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CCE	#FFFFFF	#000000	##FFFFFF
##555CCE	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED2

Deuteranopia (green-blind)

#0064CC

Tritanopia (blue-blind)

#00778C

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555cce;
/* rgb */ color: rgb(85, 92, 206);
/* oklch */ color: oklch(53.2% 0.173 276.1);

Tailwind

colors: {
  custom: {
    50: '#908ade',
    500: '#555cce',
    950: '#000000',
  },
}

SCSS

$custom: #555cce;
$custom-light: #908ade;
$custom-dark: #000000;

JSON

{
  "hex": "#555cce",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 206
  },
  "hsl": {
    "h": 236.529,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.532,
    "c": 0.17341,
    "h": 276.1
  },
  "luminance": 0.14042
}

Semantic roles & 50–950 ramp

primary

#555CCE

secondary

#D8D5A7

accent

#D649DF

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #555CCE

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

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