#2F40C9#2F40C9

#2F40C9 is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 45.6% C 0.210 H 269.8°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#2F40C9
RGB	rgb(47, 64, 201)
HSL	hsl(233, 62%, 49%)
HSV	hsv(233, 77%, 79%)
CMYK	cmyk(76.6%, 68.2%, 0%, 21.2%)
CIE-LAB	lab(34.98, 41.44, -72.51)
CIE-LCH	lch(34.98, 83.52, 299.75°)
OKLab	oklab(45.63% -0.0007 -0.2099)
OKLCH	oklch(45.63% 0.21 269.8)
XYZ	xyz(13.5447, 8.4867, 56.1713)
Luminance	0.0849 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F40C9 #C9B82F

analogous

#2F8DC9 #2F40C9 #6B2FC9

triadic

#2F40C9 #C92F40 #40C92F

tetradic

#2F40C9 #C92F8D #C9B82F #2FC96B

square

#2F40C9 #C92F8D #C9B82F #2FC96B

split-complementary

#2F40C9 #C96B2F #8DC92F

monochromatic

#182066 #233097 #2F40C9 #5C6AD9 #8E97E5

Accessibility & contrast

On white

7.78

#2F40C9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#2F40C9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F40C9

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F40C9	#FFFFFF	#000000	##FFFFFF
##2F40C9	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACD

Deuteranopia (green-blind)

#004BC6

Tritanopia (blue-blind)

#00667F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #2f40c9;
/* rgb */ color: rgb(47, 64, 201);
/* oklch */ color: oklch(45.6% 0.210 269.8);

Tailwind

colors: {
  custom: {
    50: '#8075db',
    500: '#2f40c9',
    950: '#000000',
  },
}

SCSS

$custom: #2f40c9;
$custom-light: #8075db;
$custom-dark: #000000;

JSON

{
  "hex": "#2f40c9",
  "rgb": {
    "r": 47,
    "g": 64,
    "b": 201
  },
  "hsl": {
    "h": 233.377,
    "s": 62.097,
    "l": 48.627
  },
  "oklch": {
    "l": 0.45626,
    "c": 0.20991,
    "h": 269.8
  },
  "luminance": 0.08488
}

Semantic roles & 50–950 ramp

primary

#2F40C9

secondary

#CFC785

accent

#D343E5

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #2F40C9

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

Preview Lab → · Contrast checker → · Palette generator →