#2F33A9#2F33A9

#2F33A9 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.4% C 0.184 H 273.1°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#2F33A9
RGB	rgb(47, 51, 169)
HSL	hsl(238, 56%, 42%)
HSV	hsv(238, 72%, 66%)
CMYK	cmyk(72.2%, 69.8%, 0%, 33.7%)
CIE-LAB	lab(28.99, 38.23, -63.42)
CIE-LCH	lch(28.99, 74.05, 301.08°)
OKLab	oklab(40.38% 0.01 -0.1834)
OKLCH	oklch(40.38% 0.184 273.1)
XYZ	xyz(9.5151, 5.8356, 38.1534)
Luminance	0.0584 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.55

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F33A9 #A9A52F

analogous

#2F70A9 #2F33A9 #682FA9

triadic

#2F33A9 #A92F33 #33A92F

tetradic

#2F33A9 #A92F70 #A9A52F #2FA968

square

#2F33A9 #A92F70 #A9A52F #2FA968

split-complementary

#2F33A9 #A9682F #70A92F

monochromatic

#141649 #222579 #2F33A9 #494DCC #797CDA

Accessibility & contrast

On white

9.69

#2F33A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#2F33A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F33A9

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F33A9	#FFFFFF	#000000	##FFFFFF
##2F33A9	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAD

Deuteranopia (green-blind)

#003FA7

Tritanopia (blue-blind)

#00536A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f33a9;
/* rgb */ color: rgb(47, 51, 169);
/* oklch */ color: oklch(40.4% 0.184 273.1);

Tailwind

colors: {
  custom: {
    50: '#7a6bc4',
    500: '#2f33a9',
    950: '#000000',
  },
}

SCSS

$custom: #2f33a9;
$custom-light: #7a6bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#2f33a9",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 169
  },
  "hsl": {
    "h": 238.033,
    "s": 56.481,
    "l": 42.353
  },
  "oklch": {
    "l": 0.40375,
    "c": 0.18366,
    "h": 273.1
  },
  "luminance": 0.05837
}

Semantic roles & 50–950 ramp

primary

#2F33A9

secondary

#C2BF72

accent

#DB48E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F33A9

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

Preview Lab → · Contrast checker → · Palette generator →