#2C40B7#2C40B7

#2C40B7 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.8% C 0.188 H 269.3°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#2C40B7
RGB	rgb(44, 64, 183)
HSL	hsl(231, 61%, 45%)
HSV	hsv(231, 76%, 72%)
CMYK	cmyk(76%, 65%, 0%, 28.2%)
CIE-LAB	lab(33.18, 34.72, -64.91)
CIE-LCH	lch(33.18, 73.61, 298.14°)
OKLab	oklab(43.77% -0.0023 -0.1877)
OKLCH	oklch(43.77% 0.188 269.3)
XYZ	xyz(11.4164, 7.6199, 45.6597)
Luminance	0.0762 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.82

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C40B7 #B7A32C

analogous

#2C86B7 #2C40B7 #5E2CB7

triadic

#2C40B7 #B72C40 #40B72C

tetradic

#2C40B7 #B72C86 #B7A32C #2CB75E

square

#2C40B7 #B72C86 #B7A32C #2CB75E

split-complementary

#2C40B7 #B75E2C #86B72C

monochromatic

#141D54 #202F86 #2C40B7 #4C60D4 #7E8CE0

Accessibility & contrast

On white

8.32

#2C40B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#2C40B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C40B7

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C40B7	#FFFFFF	#000000	##FFFFFF
##2C40B7	1.00	8.32	2.52	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BB

Deuteranopia (green-blind)

#0048B5

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2c40b7;
/* rgb */ color: rgb(44, 64, 183);
/* oklch */ color: oklch(43.8% 0.188 269.3);

Tailwind

colors: {
  custom: {
    50: '#7b75ce',
    500: '#2c40b7',
    950: '#000000',
  },
}

SCSS

$custom: #2c40b7;
$custom-light: #7b75ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2c40b7",
  "rgb": {
    "r": 44,
    "g": 64,
    "b": 183
  },
  "hsl": {
    "h": 231.367,
    "s": 61.233,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43772,
    "c": 0.18776,
    "h": 269.3
  },
  "luminance": 0.07621
}

Semantic roles & 50–950 ramp

primary

#2C40B7

secondary

#C8BD76

accent

#CD43E4

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2C40B7

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

Preview Lab → · Contrast checker → · Palette generator →