#3355A8#3355A8

#3355A8 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.0% C 0.139 H 264.8°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#3355A8
RGB	rgb(51, 85, 168)
HSL	hsl(223, 53%, 43%)
HSV	hsv(223, 70%, 66%)
CMYK	cmyk(69.6%, 49.4%, 0%, 34.1%)
CIE-LAB	lab(37.89, 16.29, -48.34)
CIE-LCH	lch(37.89, 51.01, 288.62°)
OKLab	oklab(47.03% -0.0126 -0.1386)
OKLCH	oklch(47.03% 0.139 264.8)
XYZ	xyz(11.6791, 10.0268, 38.3581)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3355A8 #A88633

analogous

#338FA8 #3355A8 #4B33A8

triadic

#3355A8 #A83355 #55A833

tetradic

#3355A8 #A8338F #A88633 #33A84B

square

#3355A8 #A8338F #A88633 #33A84B

split-complementary

#3355A8 #A84B33 #8FA833

monochromatic

#16254A #253D79 #3355A8 #4F72C9 #7E98D8

Accessibility & contrast

On white

6.99

#3355A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#3355A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3355A8

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3355A8	#FFFFFF	#000000	##FFFFFF
##3355A8	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#275FAB

Deuteranopia (green-blind)

#0454A6

Tritanopia (blue-blind)

#006876

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3355a8;
/* rgb */ color: rgb(51, 85, 168);
/* oklch */ color: oklch(47.0% 0.139 264.8);

Tailwind

colors: {
  custom: {
    50: '#7984c2',
    500: '#3355a8',
    950: '#000000',
  },
}

SCSS

$custom: #3355a8;
$custom-light: #7984c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3355a8",
  "rgb": {
    "r": 51,
    "g": 85,
    "b": 168
  },
  "hsl": {
    "h": 222.564,
    "s": 53.425,
    "l": 42.941
  },
  "oklch": {
    "l": 0.47027,
    "c": 0.13921,
    "h": 264.8
  },
  "luminance": 0.10028
}

Semantic roles & 50–950 ramp

primary

#3355A8

secondary

#C1AB76

accent

#B24BDD

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3355A8

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

Preview Lab → · Contrast checker → · Palette generator →