#333EA8#333EA8

#333EA8 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.168 H 272.4°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#333EA8
RGB	rgb(51, 62, 168)
HSL	hsl(234, 53%, 43%)
HSV	hsv(234, 70%, 66%)
CMYK	cmyk(69.6%, 63.1%, 0%, 34.1%)
CIE-LAB	lab(31.75, 31.42, -58.30)
CIE-LCH	lch(31.75, 66.23, 298.33°)
OKLab	oklab(42.42% 0.007 -0.1682)
OKLCH	oklch(42.42% 0.168 272.4)
XYZ	xyz(10.1534, 6.9752, 37.8495)
Luminance	0.0698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333EA8 #A89D33

analogous

#3378A8 #333EA8 #6233A8

triadic

#333EA8 #A8333E #3EA833

tetradic

#333EA8 #A83378 #A89D33 #33A862

square

#333EA8 #A83378 #A89D33 #33A862

split-complementary

#333EA8 #A86233 #78A833

monochromatic

#161B4A #252D79 #333EA8 #4F5AC9 #7E86D8

Accessibility & contrast

On white

8.77

#333EA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#333EA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EA8

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EA8	#FFFFFF	#000000	##FFFFFF
##333EA8	1.00	8.77	2.40	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AB

Deuteranopia (green-blind)

#0045A6

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #333ea8;
/* rgb */ color: rgb(51, 62, 168);
/* oklch */ color: oklch(42.4% 0.168 272.4);

Tailwind

colors: {
  custom: {
    50: '#7a73c3',
    500: '#333ea8',
    950: '#000000',
  },
}

SCSS

$custom: #333ea8;
$custom-light: #7a73c3;
$custom-dark: #000000;

JSON

{
  "hex": "#333ea8",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 168
  },
  "hsl": {
    "h": 234.359,
    "s": 53.425,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4242,
    "c": 0.16838,
    "h": 272.4
  },
  "luminance": 0.06976
}

Semantic roles & 50–950 ramp

primary

#333EA8

secondary

#C1BA76

accent

#CF4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #333EA8

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

Preview Lab → · Contrast checker → · Palette generator →