#555DDD#555DDD

#555DDD is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.5% C 0.192 H 275.3°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#555DDD
RGB	rgb(85, 93, 221)
HSL	hsl(236, 67%, 60%)
HSV	hsv(236, 62%, 87%)
CMYK	cmyk(61.5%, 57.9%, 0%, 13.3%)
CIE-LAB	lab(45.61, 35.32, -66.56)
CIE-LCH	lch(45.61, 75.35, 297.96°)
OKLab	oklab(54.52% 0.0178 -0.1914)
OKLCH	oklch(54.52% 0.192 275.3)
XYZ	xyz(20.7075, 14.9788, 70.1926)
Luminance	0.1498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555DDD #DDD555

analogous

#55A1DD #555DDD #9155DD

triadic

#555DDD #DD555D #5DDD55

tetradic

#555DDD #DD55A1 #DDD555 #55DD91

square

#555DDD #DD55A1 #DDD555 #55DD91

split-complementary

#555DDD #DD9155 #A1DD55

monochromatic

#1F2699 #2932CC #555DDD #888EE7 #BBBEF1

Accessibility & contrast

On white

5.26

#555DDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#555DDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555DDD

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555DDD	#FFFFFF	#000000	##FFFFFF
##555DDD	1.00	5.26	4.00	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072E1

Deuteranopia (green-blind)

#0066DA

Tritanopia (blue-blind)

#007C94

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #555ddd;
/* rgb */ color: rgb(85, 93, 221);
/* oklch */ color: oklch(54.5% 0.192 275.3);

Tailwind

colors: {
  custom: {
    50: '#928be8',
    500: '#555ddd',
    950: '#000000',
  },
}

SCSS

$custom: #555ddd;
$custom-light: #928be8;
$custom-dark: #000000;

JSON

{
  "hex": "#555ddd",
  "rgb": {
    "r": 85,
    "g": 93,
    "b": 221
  },
  "hsl": {
    "h": 236.471,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.54515,
    "c": 0.19219,
    "h": 275.3
  },
  "luminance": 0.1498
}

Semantic roles & 50–950 ramp

primary

#555DDD

secondary

#E1DEAD

accent

#E03EEA

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #555DDD

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

Preview Lab → · Contrast checker → · Palette generator →