#3338B3#3338B3

#3338B3 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.4% C 0.190 H 273.1°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#3338B3
RGB	rgb(51, 56, 179)
HSL	hsl(238, 56%, 45%)
HSV	hsv(238, 72%, 70%)
CMYK	cmyk(71.5%, 68.7%, 0%, 29.8%)
CIE-LAB	lab(31.31, 39.08, -65.58)
CIE-LCH	lch(31.31, 76.34, 300.79°)
OKLab	oklab(42.4% 0.0103 -0.1896)
OKLCH	oklch(42.4% 0.19 273.1)
XYZ	xyz(10.9134, 6.7858, 43.3737)
Luminance	0.0679 (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

#3338B3 #B3AE33

analogous

#3378B3 #3338B3 #6E33B3

triadic

#3338B3 #B33338 #38B333

tetradic

#3338B3 #B33378 #B3AE33 #33B36E

square

#3338B3 #B33378 #B3AE33 #33B36E

split-complementary

#3338B3 #B36E33 #78B333

monochromatic

#181A54 #252983 #3338B3 #5559CE #8488DC

Accessibility & contrast

On white

8.91

#3338B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3338B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3338B3

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3338B3	#FFFFFF	#000000	##FFFFFF
##3338B3	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B7

Deuteranopia (green-blind)

#0044B1

Tritanopia (blue-blind)

#005971

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3338b3;
/* rgb */ color: rgb(51, 56, 179);
/* oklch */ color: oklch(42.4% 0.190 273.1);

Tailwind

colors: {
  custom: {
    50: '#7d6fcb',
    500: '#3338b3',
    950: '#000000',
  },
}

SCSS

$custom: #3338b3;
$custom-light: #7d6fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3338b3",
  "rgb": {
    "r": 51,
    "g": 56,
    "b": 179
  },
  "hsl": {
    "h": 237.656,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.42404,
    "c": 0.18988,
    "h": 273.1
  },
  "luminance": 0.06787
}

Semantic roles & 50–950 ramp

primary

#3338B3

secondary

#C6C37C

accent

#D949DF

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3338B3

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

Preview Lab → · Contrast checker → · Palette generator →