#333EA5#333EA5

#333EA5 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.164 H 272.5°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#333EA5
RGB	rgb(51, 62, 165)
HSL	hsl(234, 53%, 42%)
HSV	hsv(234, 69%, 65%)
CMYK	cmyk(69.1%, 62.4%, 0%, 35.3%)
CIE-LAB	lab(31.50, 30.34, -56.91)
CIE-LCH	lch(31.50, 64.49, 298.07°)
OKLab	oklab(42.15% 0.0071 -0.1642)
OKLCH	oklch(42.15% 0.164 272.5)
XYZ	xyz(9.8771, 6.8647, 36.3945)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333EA5 #A59A33

analogous

#3377A5 #333EA5 #6133A5

triadic

#333EA5 #A5333E #3EA533

tetradic

#333EA5 #A53377 #A59A33 #33A561

square

#333EA5 #A53377 #A59A33 #33A561

split-complementary

#333EA5 #A56133 #77A533

monochromatic

#161B48 #252C76 #333EA5 #4D59C8 #7C85D6

Accessibility & contrast

On white

8.85

#333EA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#333EA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EA5

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EA5	#FFFFFF	#000000	##FFFFFF
##333EA5	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA8

Deuteranopia (green-blind)

#0045A3

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333ea5;
/* rgb */ color: rgb(51, 62, 165);
/* oklch */ color: oklch(42.2% 0.164 272.5);

Tailwind

colors: {
  custom: {
    50: '#7a73c1',
    500: '#333ea5',
    950: '#000000',
  },
}

SCSS

$custom: #333ea5;
$custom-light: #7a73c1;
$custom-dark: #000000;

JSON

{
  "hex": "#333ea5",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 165
  },
  "hsl": {
    "h": 234.211,
    "s": 52.778,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42154,
    "c": 0.16432,
    "h": 272.5
  },
  "luminance": 0.06866
}

Semantic roles & 50–950 ramp

primary

#333EA5

secondary

#BFB875

accent

#CE4CDC

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333EA5

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

Preview Lab → · Contrast checker → · Palette generator →