#3337AC#3337AC

#3337AC is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.6% C 0.182 H 273.7°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#3337AC
RGB	rgb(51, 55, 172)
HSL	hsl(238, 54%, 44%)
HSV	hsv(238, 70%, 67%)
CMYK	cmyk(70.3%, 68%, 0%, 32.5%)
CIE-LAB	lab(30.43, 37.27, -62.85)
CIE-LCH	lch(30.43, 73.07, 300.67°)
OKLab	oklab(41.57% 0.0117 -0.1816)
OKLCH	oklch(41.57% 0.182 273.7)
XYZ	xyz(10.1753, 6.4138, 39.7235)
Luminance	0.0641 (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

#3337AC #ACA833

analogous

#3373AC #3337AC #6B33AC

triadic

#3337AC #AC3337 #37AC33

tetradic

#3337AC #AC3373 #ACA833 #33AC6B

square

#3337AC #AC3373 #ACA833 #33AC6B

split-complementary

#3337AC #AC6B33 #73AC33

monochromatic

#17194E #25287D #3337AC #5155CB #8083D9

Accessibility & contrast

On white

9.20

#3337AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#3337AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3337AC

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3337AC	#FFFFFF	#000000	##FFFFFF
##3337AC	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB0

Deuteranopia (green-blind)

#0042AA

Tritanopia (blue-blind)

#00566D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3337ac;
/* rgb */ color: rgb(51, 55, 172);
/* oklch */ color: oklch(41.6% 0.182 273.7);

Tailwind

colors: {
  custom: {
    50: '#7c6ec6',
    500: '#3337ac',
    950: '#000000',
  },
}

SCSS

$custom: #3337ac;
$custom-light: #7c6ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#3337ac",
  "rgb": {
    "r": 51,
    "g": 55,
    "b": 172
  },
  "hsl": {
    "h": 238.017,
    "s": 54.26,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41567,
    "c": 0.18199,
    "h": 273.7
  },
  "luminance": 0.06415
}

Semantic roles & 50–950 ramp

primary

#3337AC

secondary

#C2C078

accent

#D94ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3337AC

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

Preview Lab → · Contrast checker → · Palette generator →