#3339C0#3339C0

#3339C0 is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.8% C 0.205 H 272.3°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#3339C0
RGB	rgb(51, 57, 192)
HSL	hsl(237, 58%, 48%)
HSV	hsv(237, 73%, 75%)
CMYK	cmyk(73.4%, 70.3%, 0%, 24.7%)
CIE-LAB	lab(32.78, 42.93, -70.86)
CIE-LCH	lch(32.78, 82.85, 301.21°)
OKLab	oklab(43.83% 0.0081 -0.205)
OKLCH	oklch(43.83% 0.205 272.3)
XYZ	xyz(12.3396, 7.4346, 50.6436)
Luminance	0.0744 (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

#3339C0 #C0BA33

analogous

#337FC0 #3339C0 #7433C0

triadic

#3339C0 #C03339 #39C033

tetradic

#3339C0 #C0337F #C0BA33 #33C074

square

#3339C0 #C0337F #C0BA33 #33C074

split-complementary

#3339C0 #C07433 #7FC033

monochromatic

#191C5F #262B90 #3339C0 #5C61D4 #8D90E1

Accessibility & contrast

On white

8.44

#3339C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3339C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3339C0

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3339C0	#FFFFFF	#000000	##FFFFFF
##3339C0	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C4

Deuteranopia (green-blind)

#0046BE

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3339c0;
/* rgb */ color: rgb(51, 57, 192);
/* oklch */ color: oklch(43.8% 0.205 272.3);

Tailwind

colors: {
  custom: {
    50: '#8070d4',
    500: '#3339c0',
    950: '#000000',
  },
}

SCSS

$custom: #3339c0;
$custom-light: #8070d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3339c0",
  "rgb": {
    "r": 51,
    "g": 57,
    "b": 192
  },
  "hsl": {
    "h": 237.447,
    "s": 58.025,
    "l": 47.647
  },
  "oklch": {
    "l": 0.43834,
    "c": 0.20517,
    "h": 272.3
  },
  "luminance": 0.07436
}

Semantic roles & 50–950 ramp

primary

#3339C0

secondary

#CBC884

accent

#DB47E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3339C0

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

Preview Lab → · Contrast checker → · Palette generator →