#3555CD#3555CD

#3555CD is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.0% C 0.189 H 267.5°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#3555CD
RGB	rgb(53, 85, 205)
HSL	hsl(227, 60%, 51%)
HSV	hsv(227, 74%, 80%)
CMYK	cmyk(74.1%, 58.5%, 0%, 19.6%)
CIE-LAB	lab(40.67, 30.26, -65.50)
CIE-LCH	lch(40.67, 72.15, 294.80°)
OKLab	oklab(50% -0.0081 -0.1891)
OKLCH	oklch(50% 0.189 267.5)
XYZ	xyz(15.7323, 11.6600, 59.1672)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3555CD #CDAD35

analogous

#35A1CD #3555CD #6135CD

triadic

#3555CD #CD3555 #55CD35

tetradic

#3555CD #CD35A1 #CDAD35 #35CD61

square

#3555CD #CD35A1 #CDAD35 #35CD61

split-complementary

#3555CD #CD6135 #A1CD35

monochromatic

#1B2C6D #27409E #3555CD #667ED9 #97A8E5

Accessibility & contrast

On white

6.30

#3555CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#3555CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3555CD

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3555CD	#FFFFFF	#000000	##FFFFFF
##3555CD	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D1

Deuteranopia (green-blind)

#0059CB

Tritanopia (blue-blind)

#007389

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3555cd;
/* rgb */ color: rgb(53, 85, 205);
/* oklch */ color: oklch(50.0% 0.189 267.5);

Tailwind

colors: {
  custom: {
    50: '#8284dd',
    500: '#3555cd',
    950: '#000000',
  },
}

SCSS

$custom: #3555cd;
$custom-light: #8284dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3555cd",
  "rgb": {
    "r": 53,
    "g": 85,
    "b": 205
  },
  "hsl": {
    "h": 227.368,
    "s": 60.317,
    "l": 50.588
  },
  "oklch": {
    "l": 0.49999,
    "c": 0.18924,
    "h": 267.5
  },
  "luminance": 0.11662
}

Semantic roles & 50–950 ramp

primary

#3555CD

secondary

#D1C28D

accent

#C244E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3555CD

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

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