#333579#333579

#333579 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.7% C 0.113 H 278.0°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#333579
RGB	rgb(51, 53, 121)
HSL	hsl(238, 41%, 34%)
HSV	hsv(238, 58%, 47%)
CMYK	cmyk(57.9%, 56.2%, 0%, 52.5%)
CIE-LAB	lab(25.65, 20.52, -39.27)
CIE-LCH	lch(25.65, 44.31, 297.58°)
OKLab	oklab(36.72% 0.0157 -0.1124)
OKLCH	oklch(36.72% 0.113 278)
XYZ	xyz(6.0884, 4.6301, 18.6583)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333579 #797733

analogous

#335879 #333579 #543379

triadic

#333579 #793335 #357933

tetradic

#333579 #793358 #797733 #337954

square

#333579 #793358 #797733 #337954

split-complementary

#333579 #795433 #587933

monochromatic

#0F0F23 #21224E #333579 #4548A4 #676ABF

Accessibility & contrast

On white

10.90

#333579 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#333579 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333579

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333579	#FFFFFF	#000000	##FFFFFF
##333579	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B407B

Deuteranopia (green-blind)

#003A78

Tritanopia (blue-blind)

#0F4551

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #333579;
/* rgb */ color: rgb(51, 53, 121);
/* oklch */ color: oklch(36.7% 0.113 278.0);

Tailwind

colors: {
  custom: {
    50: '#716ca0',
    500: '#333579',
    950: '#000000',
  },
}

SCSS

$custom: #333579;
$custom-light: #716ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#333579",
  "rgb": {
    "r": 51,
    "g": 53,
    "b": 121
  },
  "hsl": {
    "h": 238.286,
    "s": 40.698,
    "l": 33.725
  },
  "oklch": {
    "l": 0.36721,
    "c": 0.11349,
    "h": 278
  },
  "luminance": 0.0463
}

Semantic roles & 50–950 ramp

primary

#333579

secondary

#A7A561

accent

#CD57D1

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#08070F

muted

#7B7A7E

Preview Lab

Preview with #333579

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

Preview Lab → · Contrast checker → · Palette generator →