#555CDD#555CDD

#555CDD is a mid, vivid blue. Relative luminance 0.148; OKLCH L 54.3% C 0.193 H 275.5°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#555CDD
RGB	rgb(85, 92, 221)
HSL	hsl(237, 67%, 60%)
HSV	hsv(237, 62%, 87%)
CMYK	cmyk(61.5%, 58.4%, 0%, 13.3%)
CIE-LAB	lab(45.37, 35.93, -66.95)
CIE-LCH	lch(45.37, 75.98, 298.22°)
OKLab	oklab(54.34% 0.0187 -0.1925)
OKLCH	oklch(54.34% 0.193 275.5)
XYZ	xyz(20.6203, 14.8044, 70.1635)
Luminance	0.1481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CDD #DDD655

analogous

#55A0DD #555CDD #9255DD

triadic

#555CDD #DD555C #5CDD55

tetradic

#555CDD #DD55A0 #DDD655 #55DD92

square

#555CDD #DD55A0 #DDD655 #55DD92

split-complementary

#555CDD #DD9255 #A0DD55

monochromatic

#1F2599 #2931CC #555CDD #888DE7 #BBBEF1

Accessibility & contrast

On white

5.30

#555CDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#555CDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CDD

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CDD	#FFFFFF	#000000	##FFFFFF
##555CDD	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071E1

Deuteranopia (green-blind)

#0066DA

Tritanopia (blue-blind)

#007B94

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #555cdd;
/* rgb */ color: rgb(85, 92, 221);
/* oklch */ color: oklch(54.3% 0.193 275.5);

Tailwind

colors: {
  custom: {
    50: '#928ae8',
    500: '#555cdd',
    950: '#000000',
  },
}

SCSS

$custom: #555cdd;
$custom-light: #928ae8;
$custom-dark: #000000;

JSON

{
  "hex": "#555cdd",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 221
  },
  "hsl": {
    "h": 236.912,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.54337,
    "c": 0.19342,
    "h": 275.5
  },
  "luminance": 0.14806
}

Semantic roles & 50–950 ramp

primary

#555CDD

secondary

#E1DEAD

accent

#E13EEA

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555CDD

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

Preview Lab → · Contrast checker → · Palette generator →