#3338AA#3338AA

#3338AA is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.5% C 0.178 H 273.6°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#3338AA
RGB	rgb(51, 56, 170)
HSL	hsl(237, 54%, 43%)
HSV	hsv(237, 70%, 67%)
CMYK	cmyk(70%, 67.1%, 0%, 33.3%)
CIE-LAB	lab(30.48, 35.95, -61.57)
CIE-LCH	lch(30.48, 71.30, 300.28°)
OKLab	oklab(41.55% 0.0113 -0.1779)
OKLCH	oklch(41.55% 0.178 273.6)
XYZ	xyz(10.0327, 6.4335, 38.7355)
Luminance	0.0643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3338AA #AAA533

analogous

#3373AA #3338AA #6933AA

triadic

#3338AA #AA3338 #38AA33

tetradic

#3338AA #AA3373 #AAA533 #33AA69

square

#3338AA #AA3373 #AAA533 #33AA69

split-complementary

#3338AA #AA6933 #73AA33

monochromatic

#17194C #25287B #3338AA #5055CA #7F83D9

Accessibility & contrast

On white

9.18

#3338AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#3338AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3338AA

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3338AA	#FFFFFF	#000000	##FFFFFF
##3338AA	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAE

Deuteranopia (green-blind)

#0042A8

Tritanopia (blue-blind)

#00566C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3338aa;
/* rgb */ color: rgb(51, 56, 170);
/* oklch */ color: oklch(41.5% 0.178 273.6);

Tailwind

colors: {
  custom: {
    50: '#7b6fc4',
    500: '#3338aa',
    950: '#000000',
  },
}

SCSS

$custom: #3338aa;
$custom-light: #7b6fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3338aa",
  "rgb": {
    "r": 51,
    "g": 56,
    "b": 170
  },
  "hsl": {
    "h": 237.479,
    "s": 53.846,
    "l": 43.333
  },
  "oklch": {
    "l": 0.41546,
    "c": 0.17823,
    "h": 273.6
  },
  "luminance": 0.06434
}

Semantic roles & 50–950 ramp

primary

#3338AA

secondary

#C2BE77

accent

#D74BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3338AA

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

Preview Lab → · Contrast checker → · Palette generator →