#3355B5#3355B5

#3355B5 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.0% C 0.157 H 265.9°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#3355B5
RGB	rgb(51, 85, 181)
HSL	hsl(224, 56%, 45%)
HSV	hsv(224, 72%, 71%)
CMYK	cmyk(71.8%, 53%, 0%, 29%)
CIE-LAB	lab(38.79, 21.14, -54.58)
CIE-LCH	lch(38.79, 58.53, 291.17°)
OKLab	oklab(47.99% -0.0111 -0.157)
OKLCH	oklch(47.99% 0.157 265.9)
XYZ	xyz(12.9513, 10.5357, 45.0581)
Luminance	0.1054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3355B5 #B59333

analogous

#3396B5 #3355B5 #5233B5

triadic

#3355B5 #B53355 #55B533

tetradic

#3355B5 #B53396 #B59333 #33B552

square

#3355B5 #B53396 #B59333 #33B552

split-complementary

#3355B5 #B55233 #96B533

monochromatic

#182856 #263F85 #3355B5 #5676CF #869CDD

Accessibility & contrast

On white

6.76

#3355B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3355B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3355B5

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3355B5	#FFFFFF	#000000	##FFFFFF
##3355B5	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1262B8

Deuteranopia (green-blind)

#0056B3

Tritanopia (blue-blind)

#006C7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3355b5;
/* rgb */ color: rgb(51, 85, 181);
/* oklch */ color: oklch(48.0% 0.157 265.9);

Tailwind

colors: {
  custom: {
    50: '#7b84cc',
    500: '#3355b5',
    950: '#000000',
  },
}

SCSS

$custom: #3355b5;
$custom-light: #7b84cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3355b5",
  "rgb": {
    "r": 51,
    "g": 85,
    "b": 181
  },
  "hsl": {
    "h": 224.308,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.47994,
    "c": 0.15741,
    "h": 265.9
  },
  "luminance": 0.10537
}

Semantic roles & 50–950 ramp

primary

#3355B5

secondary

#C6B37D

accent

#B848DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3355B5

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

Preview Lab → · Contrast checker → · Palette generator →