#333B79#333B79

#333B79 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 38.0% C 0.105 H 274.8°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#333B79
RGB	rgb(51, 59, 121)
HSL	hsl(233, 41%, 34%)
HSV	hsv(233, 58%, 47%)
CMYK	cmyk(57.9%, 51.2%, 0%, 52.5%)
CIE-LAB	lab(27.33, 16.43, -36.57)
CIE-LCH	lch(27.33, 40.09, 294.19°)
OKLab	oklab(37.98% 0.0087 -0.1044)
OKLCH	oklch(37.98% 0.105 274.8)
XYZ	xyz(6.3793, 5.2118, 18.7553)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333B79 #797133

analogous

#335E79 #333B79 #4E3379

triadic

#333B79 #79333B #3B7933

tetradic

#333B79 #79335E #797133 #33794E

square

#333B79 #79335E #797133 #33794E

split-complementary

#333B79 #794E33 #5E7933

monochromatic

#0F1123 #21264E #333B79 #4550A4 #6771BF

Accessibility & contrast

On white

10.28

#333B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#333B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333B79

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333B79	#FFFFFF	#000000	##FFFFFF
##333B79	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C447B

Deuteranopia (green-blind)

#123E78

Tritanopia (blue-blind)

#0D4954

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #333b79;
/* rgb */ color: rgb(51, 59, 121);
/* oklch */ color: oklch(38.0% 0.105 274.8);

Tailwind

colors: {
  custom: {
    50: '#7170a0',
    500: '#333b79',
    950: '#000000',
  },
}

SCSS

$custom: #333b79;
$custom-light: #7170a0;
$custom-dark: #000000;

JSON

{
  "hex": "#333b79",
  "rgb": {
    "r": 51,
    "g": 59,
    "b": 121
  },
  "hsl": {
    "h": 233.143,
    "s": 40.698,
    "l": 33.725
  },
  "oklch": {
    "l": 0.37982,
    "c": 0.10476,
    "h": 274.8
  },
  "luminance": 0.05212
}

Semantic roles & 50–950 ramp

primary

#333B79

secondary

#A79F61

accent

#C357D1

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070F

muted

#7B7A7E

Preview Lab

Preview with #333B79

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

Preview Lab → · Contrast checker → · Palette generator →