#3333A7#3333A7

#3333A7 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.4% C 0.180 H 274.8°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#3333A7
RGB	rgb(51, 51, 167)
HSL	hsl(240, 53%, 43%)
HSV	hsv(240, 69%, 65%)
CMYK	cmyk(69.5%, 69.5%, 0%, 34.5%)
CIE-LAB	lab(29.06, 38.00, -62.11)
CIE-LCH	lch(29.06, 72.81, 301.46°)
OKLab	oklab(40.43% 0.015 -0.1794)
OKLCH	oklch(40.43% 0.18 274.8)
XYZ	xyz(9.5218, 5.8606, 37.1811)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333A7 #A7A733

analogous

#336DA7 #3333A7 #6D33A7

triadic

#3333A7 #A73333 #33A733

tetradic

#3333A7 #A7336D #A7A733 #33A76D

square

#3333A7 #A7336D #A7A733 #33A76D

split-complementary

#3333A7 #A76D33 #6DA733

monochromatic

#161649 #252578 #3333A7 #4E4EC9 #7D7DD7

Accessibility & contrast

On white

9.67

#3333A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#3333A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333A7

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333A7	#FFFFFF	#000000	##FFFFFF
##3333A7	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAB

Deuteranopia (green-blind)

#003FA5

Tritanopia (blue-blind)

#005269

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3333a7;
/* rgb */ color: rgb(51, 51, 167);
/* oklch */ color: oklch(40.4% 0.180 274.8);

Tailwind

colors: {
  custom: {
    50: '#7b6bc2',
    500: '#3333a7',
    950: '#000000',
  },
}

SCSS

$custom: #3333a7;
$custom-light: #7b6bc2;
$custom-dark: #000000;

JSON

{
  "hex": "#3333a7",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 167
  },
  "hsl": {
    "h": 240,
    "s": 53.211,
    "l": 42.745
  },
  "oklch": {
    "l": 0.40431,
    "c": 0.18007,
    "h": 274.8
  },
  "luminance": 0.05861
}

Semantic roles & 50–950 ramp

primary

#3333A7

secondary

#C0C076

accent

#DD4BDD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3333A7

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

Preview Lab → · Contrast checker → · Palette generator →