#3339A5#3339A5

#3339A5 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.3% C 0.170 H 273.7°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#3339A5
RGB	rgb(51, 57, 165)
HSL	hsl(237, 53%, 42%)
HSV	hsv(237, 69%, 65%)
CMYK	cmyk(69.1%, 65.5%, 0%, 35.3%)
CIE-LAB	lab(30.27, 33.56, -58.92)
CIE-LCH	lch(30.27, 67.80, 299.67°)
OKLab	oklab(41.25% 0.011 -0.1701)
OKLCH	oklch(41.25% 0.17 273.7)
XYZ	xyz(9.6176, 6.3458, 36.3080)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.56

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3339A5 #A59F33

analogous

#3372A5 #3339A5 #6633A5

triadic

#3339A5 #A53339 #39A533

tetradic

#3339A5 #A53372 #A59F33 #33A566

square

#3339A5 #A53372 #A59F33 #33A566

split-complementary

#3339A5 #A56633 #72A533

monochromatic

#161948 #252976 #3339A5 #4D54C8 #7C81D6

Accessibility & contrast

On white

9.25

#3339A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#3339A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3339A5

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3339A5	#FFFFFF	#000000	##FFFFFF
##3339A5	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA8

Deuteranopia (green-blind)

#0042A3

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3339a5;
/* rgb */ color: rgb(51, 57, 165);
/* oklch */ color: oklch(41.3% 0.170 273.7);

Tailwind

colors: {
  custom: {
    50: '#7a6fc1',
    500: '#3339a5',
    950: '#000000',
  },
}

SCSS

$custom: #3339a5;
$custom-light: #7a6fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#3339a5",
  "rgb": {
    "r": 51,
    "g": 57,
    "b": 165
  },
  "hsl": {
    "h": 236.842,
    "s": 52.778,
    "l": 42.353
  },
  "oklch": {
    "l": 0.41253,
    "c": 0.17043,
    "h": 273.7
  },
  "luminance": 0.06347
}

Semantic roles & 50–950 ramp

primary

#3339A5

secondary

#BFBB75

accent

#D54CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #3339A5

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

Preview Lab → · Contrast checker → · Palette generator →