#3355B7#3355B7

#3355B7 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.1% C 0.160 H 266.1°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#3355B7
RGB	rgb(51, 85, 183)
HSL	hsl(225, 56%, 46%)
HSV	hsv(225, 72%, 72%)
CMYK	cmyk(72.1%, 53.6%, 0%, 28.2%)
CIE-LAB	lab(38.93, 21.89, -55.52)
CIE-LCH	lch(38.93, 59.68, 291.51°)
OKLab	oklab(48.15% -0.011 -0.1598)
OKLCH	oklch(48.15% 0.16 266.1)
XYZ	xyz(13.1580, 10.6183, 46.1467)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3355B7 #B79533

analogous

#3397B7 #3355B7 #5333B7

triadic

#3355B7 #B73355 #55B733

tetradic

#3355B7 #B73397 #B79533 #33B753

square

#3355B7 #B73397 #B79533 #33B753

split-complementary

#3355B7 #B75333 #97B733

monochromatic

#182957 #263F87 #3355B7 #5776D0 #879DDE

Accessibility & contrast

On white

6.72

#3355B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3355B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3355B7

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3355B7	#FFFFFF	#000000	##FFFFFF
##3355B7	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C62BA

Deuteranopia (green-blind)

#0056B5

Tritanopia (blue-blind)

#006D7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3355b7;
/* rgb */ color: rgb(51, 85, 183);
/* oklch */ color: oklch(48.1% 0.160 266.1);

Tailwind

colors: {
  custom: {
    50: '#7c84cd',
    500: '#3355b7',
    950: '#000000',
  },
}

SCSS

$custom: #3355b7;
$custom-light: #7c84cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3355b7",
  "rgb": {
    "r": 51,
    "g": 85,
    "b": 183
  },
  "hsl": {
    "h": 224.545,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.48148,
    "c": 0.16017,
    "h": 266.1
  },
  "luminance": 0.1062
}

Semantic roles & 50–950 ramp

primary

#3355B7

secondary

#C7B57F

accent

#B948E0

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3355B7

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

Preview Lab → · Contrast checker → · Palette generator →