#3550D0#3550D0

#3550D0 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.3% C 0.199 H 268.6°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#3550D0
RGB	rgb(53, 80, 208)
HSL	hsl(230, 62%, 51%)
HSV	hsv(230, 75%, 82%)
CMYK	cmyk(74.5%, 61.5%, 0%, 18.4%)
CIE-LAB	lab(39.66, 34.54, -68.88)
CIE-LCH	lch(39.66, 77.05, 296.63°)
OKLab	oklab(49.32% -0.0047 -0.1991)
OKLCH	oklch(49.32% 0.199 268.6)
XYZ	xyz(15.7181, 11.0466, 60.9661)
Luminance	0.1105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3550D0 #D0B535

analogous

#359ED0 #3550D0 #6735D0

triadic

#3550D0 #D03550 #50D035

tetradic

#3550D0 #D0359E #D0B535 #35D067

square

#3550D0 #D0359E #D0B535 #35D067

split-complementary

#3550D0 #D06735 #9ED035

monochromatic

#1A2970 #263BA2 #3550D0 #677BDC #98A6E7

Accessibility & contrast

On white

6.54

#3550D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3550D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3550D0

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3550D0	#FFFFFF	#000000	##FFFFFF
##3550D0	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065D4

Deuteranopia (green-blind)

#0056CE

Tritanopia (blue-blind)

#007188

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3550d0;
/* rgb */ color: rgb(53, 80, 208);
/* oklch */ color: oklch(49.3% 0.199 268.6);

Tailwind

colors: {
  custom: {
    50: '#8381df',
    500: '#3550d0',
    950: '#000000',
  },
}

SCSS

$custom: #3550d0;
$custom-light: #8381df;
$custom-dark: #000000;

JSON

{
  "hex": "#3550d0",
  "rgb": {
    "r": 53,
    "g": 80,
    "b": 208
  },
  "hsl": {
    "h": 229.548,
    "s": 62.249,
    "l": 51.176
  },
  "oklch": {
    "l": 0.49323,
    "c": 0.19912,
    "h": 268.6
  },
  "luminance": 0.11048
}

Semantic roles & 50–950 ramp

primary

#3550D0

secondary

#D3C78E

accent

#C942E5

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3550D0

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

Preview Lab → · Contrast checker → · Palette generator →