#3355B8#3355B8

#3355B8 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.2% C 0.162 H 266.1°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#3355B8
RGB	rgb(51, 85, 184)
HSL	hsl(225, 57%, 46%)
HSV	hsv(225, 72%, 72%)
CMYK	cmyk(72.3%, 53.8%, 0%, 27.8%)
CIE-LAB	lab(39.00, 22.26, -55.99)
CIE-LCH	lch(39.00, 60.26, 291.68°)
OKLab	oklab(48.23% -0.0109 -0.1612)
OKLCH	oklch(48.23% 0.162 266.1)
XYZ	xyz(13.2624, 10.6601, 46.6968)
Luminance	0.1066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3355B8 #B89633

analogous

#3397B8 #3355B8 #5333B8

triadic

#3355B8 #B83355 #55B833

tetradic

#3355B8 #B83397 #B89633 #33B853

square

#3355B8 #B83397 #B89633 #33B853

split-complementary

#3355B8 #B85333 #97B833

monochromatic

#182958 #263F88 #3355B8 #5877D1 #889EDE

Accessibility & contrast

On white

6.70

#3355B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3355B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3355B8

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3355B8	#FFFFFF	#000000	##FFFFFF
##3355B8	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0862BB

Deuteranopia (green-blind)

#0056B6

Tritanopia (blue-blind)

#006D7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3355b8;
/* rgb */ color: rgb(51, 85, 184);
/* oklch */ color: oklch(48.2% 0.162 266.1);

Tailwind

colors: {
  custom: {
    50: '#7c84ce',
    500: '#3355b8',
    950: '#000000',
  },
}

SCSS

$custom: #3355b8;
$custom-light: #7c84ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3355b8",
  "rgb": {
    "r": 51,
    "g": 85,
    "b": 184
  },
  "hsl": {
    "h": 224.662,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.48225,
    "c": 0.16154,
    "h": 266.1
  },
  "luminance": 0.10661
}

Semantic roles & 50–950 ramp

primary

#3355B8

secondary

#C8B57F

accent

#B948E0

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3355B8

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

Preview Lab → · Contrast checker → · Palette generator →