#2F33A6#2F33A6

#2F33A6 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.1% C 0.180 H 273.3°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#2F33A6
RGB	rgb(47, 51, 166)
HSL	hsl(238, 56%, 42%)
HSV	hsv(238, 72%, 65%)
CMYK	cmyk(71.7%, 69.3%, 0%, 34.9%)
CIE-LAB	lab(28.71, 37.18, -62.09)
CIE-LCH	lch(28.71, 72.37, 300.91°)
OKLab	oklab(40.08% 0.0103 -0.1795)
OKLCH	oklch(40.08% 0.18 273.3)
XYZ	xyz(9.2367, 5.7243, 36.6871)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F33A6 #A6A22F

analogous

#2F6FA6 #2F33A6 #672FA6

triadic

#2F33A6 #A62F33 #33A62F

tetradic

#2F33A6 #A62F6F #A6A22F #2FA667

square

#2F33A6 #A62F6F #A6A22F #2FA667

split-complementary

#2F33A6 #A6672F #6FA62F

monochromatic

#141647 #212476 #2F33A6 #474CCB #777AD8

Accessibility & contrast

On white

9.79

#2F33A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2F33A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F33A6

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F33A6	#FFFFFF	#000000	##FFFFFF
##2F33A6	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AA

Deuteranopia (green-blind)

#003EA4

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f33a6;
/* rgb */ color: rgb(47, 51, 166);
/* oklch */ color: oklch(40.1% 0.180 273.3);

Tailwind

colors: {
  custom: {
    50: '#796bc1',
    500: '#2f33a6',
    950: '#000000',
  },
}

SCSS

$custom: #2f33a6;
$custom-light: #796bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f33a6",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 166
  },
  "hsl": {
    "h": 237.983,
    "s": 55.869,
    "l": 41.765
  },
  "oklch": {
    "l": 0.4008,
    "c": 0.1798,
    "h": 273.3
  },
  "luminance": 0.05725
}

Semantic roles & 50–950 ramp

primary

#2F33A6

secondary

#C1BE70

accent

#DA49DF

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F33A6

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

Preview Lab → · Contrast checker → · Palette generator →