#3338B1#3338B1

#3338B1 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.187 H 273.2°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#3338B1
RGB	rgb(51, 56, 177)
HSL	hsl(238, 55%, 45%)
HSV	hsv(238, 71%, 69%)
CMYK	cmyk(71.2%, 68.4%, 0%, 30.6%)
CIE-LAB	lab(31.13, 38.39, -64.70)
CIE-LCH	lch(31.13, 75.23, 300.68°)
OKLab	oklab(42.21% 0.0105 -0.187)
OKLCH	oklch(42.21% 0.187 273.2)
XYZ	xyz(10.7126, 6.7054, 42.3162)
Luminance	0.0671 (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

#3338B1 #B1AC33

analogous

#3377B1 #3338B1 #6D33B1

triadic

#3338B1 #B13338 #38B133

tetradic

#3338B1 #B13377 #B1AC33 #33B16D

square

#3338B1 #B13377 #B1AC33 #33B16D

split-complementary

#3338B1 #B16D33 #77B133

monochromatic

#181A52 #252981 #3338B1 #5458CE #8387DB

Accessibility & contrast

On white

8.97

#3338B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3338B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3338B1

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3338B1	#FFFFFF	#000000	##FFFFFF
##3338B1	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB5

Deuteranopia (green-blind)

#0043AF

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3338b1;
/* rgb */ color: rgb(51, 56, 177);
/* oklch */ color: oklch(42.2% 0.187 273.2);

Tailwind

colors: {
  custom: {
    50: '#7d6fc9',
    500: '#3338b1',
    950: '#000000',
  },
}

SCSS

$custom: #3338b1;
$custom-light: #7d6fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3338b1",
  "rgb": {
    "r": 51,
    "g": 56,
    "b": 177
  },
  "hsl": {
    "h": 237.619,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42211,
    "c": 0.18731,
    "h": 273.2
  },
  "luminance": 0.06706
}

Semantic roles & 50–950 ramp

primary

#3338B1

secondary

#C5C27B

accent

#D949DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3338B1

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

Preview Lab → · Contrast checker → · Palette generator →