#3366AB#3366AB

#3366AB is a mid, vivid cyan. Relative luminance 0.131; OKLCH L 51.0% C 0.123 H 256.7°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#3366AB
RGB	rgb(51, 102, 171)
HSL	hsl(215, 54%, 44%)
HSV	hsv(215, 70%, 67%)
CMYK	cmyk(70.2%, 40.4%, 0%, 32.9%)
CIE-LAB	lab(42.98, 6.42, -41.96)
CIE-LCH	lch(42.98, 42.45, 278.70°)
OKLab	oklab(51.01% -0.0283 -0.1196)
OKLCH	oklch(51.01% 0.123 256.7)
XYZ	xyz(13.4646, 13.1454, 40.3479)
Luminance	0.1315 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3366AB #AB7833

analogous

#33A2AB #3366AB #3C33AB

triadic

#3366AB #AB3366 #66AB33

tetradic

#3366AB #AB33A2 #AB7833 #33AB3C

square

#3366AB #AB33A2 #AB7833 #33AB3C

split-complementary

#3366AB #AB3C33 #A2AB33

monochromatic

#172E4D #254A7C #3366AB #5084CB #7FA5D9

Accessibility & contrast

On white

5.79

#3366AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#3366AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3366AB

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3366AB	#FFFFFF	#000000	##FFFFFF
##3366AB	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#466CAE

Deuteranopia (green-blind)

#3360AA

Tritanopia (blue-blind)

#007680

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3366ab;
/* rgb */ color: rgb(51, 102, 171);
/* oklch */ color: oklch(51.0% 0.123 256.7);

Tailwind

colors: {
  custom: {
    50: '#7991c4',
    500: '#3366ab',
    950: '#000000',
  },
}

SCSS

$custom: #3366ab;
$custom-light: #7991c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3366ab",
  "rgb": {
    "r": 51,
    "g": 102,
    "b": 171
  },
  "hsl": {
    "h": 214.5,
    "s": 54.054,
    "l": 43.529
  },
  "oklch": {
    "l": 0.51009,
    "c": 0.12294,
    "h": 256.7
  },
  "luminance": 0.13147
}

Semantic roles & 50–950 ramp

primary

#3366AB

secondary

#C2A278

accent

#9F4ADD

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3366AB

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

Preview Lab → · Contrast checker → · Palette generator →