#555FDD#555FDD

#555FDD is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.9% C 0.190 H 274.8°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#555FDD
RGB	rgb(85, 95, 221)
HSL	hsl(236, 67%, 60%)
HSV	hsv(236, 62%, 87%)
CMYK	cmyk(61.5%, 57%, 0%, 13.3%)
CIE-LAB	lab(46.09, 34.10, -65.77)
CIE-LCH	lch(46.09, 74.08, 297.40°)
OKLab	oklab(54.87% 0.016 -0.189)
OKLCH	oklch(54.87% 0.19 274.8)
XYZ	xyz(20.8854, 15.3345, 70.2518)
Luminance	0.1534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FDD #DDD355

analogous

#55A3DD #555FDD #8F55DD

triadic

#555FDD #DD555F #5FDD55

tetradic

#555FDD #DD55A3 #DDD355 #55DD8F

square

#555FDD #DD55A3 #DDD355 #55DD8F

split-complementary

#555FDD #DD8F55 #A3DD55

monochromatic

#1F2899 #2935CC #555FDD #888FE7 #BBBFF1

Accessibility & contrast

On white

5.16

#555FDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#555FDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FDD

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FDD	#FFFFFF	#000000	##FFFFFF
##555FDD	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073E1

Deuteranopia (green-blind)

#0067DA

Tritanopia (blue-blind)

#007D95

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #555fdd;
/* rgb */ color: rgb(85, 95, 221);
/* oklch */ color: oklch(54.9% 0.190 274.8);

Tailwind

colors: {
  custom: {
    50: '#928ce8',
    500: '#555fdd',
    950: '#000000',
  },
}

SCSS

$custom: #555fdd;
$custom-light: #928ce8;
$custom-dark: #000000;

JSON

{
  "hex": "#555fdd",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 221
  },
  "hsl": {
    "h": 235.588,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.54875,
    "c": 0.18971,
    "h": 274.8
  },
  "luminance": 0.15336
}

Semantic roles & 50–950 ramp

primary

#555FDD

secondary

#E1DDAD

accent

#DD3EEA

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #555FDD

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

Preview Lab → · Contrast checker → · Palette generator →