#3339B6#3339B6

#3339B6 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.9% C 0.193 H 272.8°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#3339B6
RGB	rgb(51, 57, 182)
HSL	hsl(237, 56%, 46%)
HSV	hsv(237, 72%, 71%)
CMYK	cmyk(72%, 68.7%, 0%, 28.6%)
CIE-LAB	lab(31.82, 39.51, -66.53)
CIE-LCH	lch(31.82, 77.38, 300.70°)
OKLab	oklab(42.86% 0.0093 -0.1924)
OKLCH	oklch(42.86% 0.193 272.8)
XYZ	xyz(11.2690, 7.0063, 45.0054)
Luminance	0.0701 (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

#3339B6 #B6B033

analogous

#337AB6 #3339B6 #6E33B6

triadic

#3339B6 #B63339 #39B633

tetradic

#3339B6 #B6337A #B6B033 #33B66E

square

#3339B6 #B6337A #B6B033 #33B66E

split-complementary

#3339B6 #B66E33 #7AB633

monochromatic

#181B56 #262A86 #3339B6 #565CD0 #868ADD

Accessibility & contrast

On white

8.74

#3339B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3339B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3339B6

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3339B6	#FFFFFF	#000000	##FFFFFF
##3339B6	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BA

Deuteranopia (green-blind)

#0045B4

Tritanopia (blue-blind)

#005B73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3339b6;
/* rgb */ color: rgb(51, 57, 182);
/* oklch */ color: oklch(42.9% 0.193 272.8);

Tailwind

colors: {
  custom: {
    50: '#7e70cd',
    500: '#3339b6',
    950: '#000000',
  },
}

SCSS

$custom: #3339b6;
$custom-light: #7e70cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3339b6",
  "rgb": {
    "r": 51,
    "g": 57,
    "b": 182
  },
  "hsl": {
    "h": 237.252,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.42856,
    "c": 0.1926,
    "h": 272.8
  },
  "luminance": 0.07007
}

Semantic roles & 50–950 ramp

primary

#3339B6

secondary

#C7C47E

accent

#D948E0

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #3339B6

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

Preview Lab → · Contrast checker → · Palette generator →