#555BDD#555BDD

#555BDD is a mid, vivid blue. Relative luminance 0.146; OKLCH L 54.2% C 0.195 H 275.8°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#555BDD
RGB	rgb(85, 91, 221)
HSL	hsl(237, 67%, 60%)
HSV	hsv(237, 62%, 87%)
CMYK	cmyk(61.5%, 58.8%, 0%, 13.3%)
CIE-LAB	lab(45.13, 36.54, -67.33)
CIE-LCH	lch(45.13, 76.61, 298.49°)
OKLab	oklab(54.16% 0.0195 -0.1937)
OKLCH	oklch(54.16% 0.195 275.8)
XYZ	xyz(20.5343, 14.6323, 70.1348)
Luminance	0.1463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BDD #DDD755

analogous

#559FDD #555BDD #9355DD

triadic

#555BDD #DD555B #5BDD55

tetradic

#555BDD #DD559F #DDD755 #55DD93

square

#555BDD #DD559F #DDD755 #55DD93

split-complementary

#555BDD #DD9355 #9FDD55

monochromatic

#1F2499 #2930CC #555BDD #888CE7 #BBBDF1

Accessibility & contrast

On white

5.35

#555BDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#555BDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BDD

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BDD	#FFFFFF	#000000	##FFFFFF
##555BDD	1.00	5.35	3.93	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071E1

Deuteranopia (green-blind)

#0065DA

Tritanopia (blue-blind)

#007B93

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #555bdd;
/* rgb */ color: rgb(85, 91, 221);
/* oklch */ color: oklch(54.2% 0.195 275.8);

Tailwind

colors: {
  custom: {
    50: '#9289e8',
    500: '#555bdd',
    950: '#000000',
  },
}

SCSS

$custom: #555bdd;
$custom-light: #9289e8;
$custom-dark: #000000;

JSON

{
  "hex": "#555bdd",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 221
  },
  "hsl": {
    "h": 237.353,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.54161,
    "c": 0.19465,
    "h": 275.8
  },
  "luminance": 0.14634
}

Semantic roles & 50–950 ramp

primary

#555BDD

secondary

#E1DFAD

accent

#E23EEA

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555BDD

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

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