#333EA4#333EA4

#333EA4 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.163 H 272.5°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#333EA4
RGB	rgb(51, 62, 164)
HSL	hsl(234, 53%, 42%)
HSV	hsv(234, 69%, 64%)
CMYK	cmyk(68.9%, 62.2%, 0%, 35.7%)
CIE-LAB	lab(31.41, 29.98, -56.44)
CIE-LCH	lch(31.41, 63.91, 297.98°)
OKLab	oklab(42.07% 0.0072 -0.1628)
OKLCH	oklch(42.07% 0.163 272.5)
XYZ	xyz(9.7865, 6.8285, 35.9170)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333EA4 #A49933

analogous

#3377A4 #333EA4 #6033A4

triadic

#333EA4 #A4333E #3EA433

tetradic

#333EA4 #A43377 #A49933 #33A460

square

#333EA4 #A43377 #A49933 #33A460

split-complementary

#333EA4 #A46033 #77A433

monochromatic

#161B47 #242C75 #333EA4 #4D59C8 #7B84D6

Accessibility & contrast

On white

8.88

#333EA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#333EA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EA4

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EA4	#FFFFFF	#000000	##FFFFFF
##333EA4	1.00	8.88	2.37	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA7

Deuteranopia (green-blind)

#0045A2

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333ea4;
/* rgb */ color: rgb(51, 62, 164);
/* oklch */ color: oklch(42.1% 0.163 272.5);

Tailwind

colors: {
  custom: {
    50: '#7973c0',
    500: '#333ea4',
    950: '#000000',
  },
}

SCSS

$custom: #333ea4;
$custom-light: #7973c0;
$custom-dark: #000000;

JSON

{
  "hex": "#333ea4",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 164
  },
  "hsl": {
    "h": 234.159,
    "s": 52.558,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42067,
    "c": 0.16295,
    "h": 272.5
  },
  "luminance": 0.06829
}

Semantic roles & 50–950 ramp

primary

#333EA4

secondary

#BFB874

accent

#CE4CDC

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333EA4

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

Preview Lab → · Contrast checker → · Palette generator →