#2C40B1#2C40B1

#2C40B1 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.2% C 0.180 H 269.4°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#2C40B1
RGB	rgb(44, 64, 177)
HSL	hsl(231, 60%, 43%)
HSV	hsv(231, 75%, 69%)
CMYK	cmyk(75.1%, 63.8%, 0%, 30.6%)
CIE-LAB	lab(32.65, 32.53, -62.22)
CIE-LCH	lch(32.65, 70.21, 297.60°)
OKLab	oklab(43.22% -0.002 -0.1799)
OKLCH	oklch(43.22% 0.18 269.4)
XYZ	xyz(10.8052, 7.3754, 42.4406)
Luminance	0.0738 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C40B1 #B19D2C

analogous

#2C82B1 #2C40B1 #5A2CB1

triadic

#2C40B1 #B12C40 #40B12C

tetradic

#2C40B1 #B12C82 #B19D2C #2CB15A

square

#2C40B1 #B12C82 #B19D2C #2CB15A

split-complementary

#2C40B1 #B15A2C #82B12C

monochromatic

#141D4F #202E80 #2C40B1 #495DD2 #7A89DE

Accessibility & contrast

On white

8.48

#2C40B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#2C40B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C40B1

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C40B1	#FFFFFF	#000000	##FFFFFF
##2C40B1	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B5

Deuteranopia (green-blind)

#0047AF

Tritanopia (blue-blind)

#005D72

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2c40b1;
/* rgb */ color: rgb(44, 64, 177);
/* oklch */ color: oklch(43.2% 0.180 269.4);

Tailwind

colors: {
  custom: {
    50: '#7974c9',
    500: '#2c40b1',
    950: '#000000',
  },
}

SCSS

$custom: #2c40b1;
$custom-light: #7974c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2c40b1",
  "rgb": {
    "r": 44,
    "g": 64,
    "b": 177
  },
  "hsl": {
    "h": 230.977,
    "s": 60.181,
    "l": 43.333
  },
  "oklch": {
    "l": 0.43218,
    "c": 0.17989,
    "h": 269.4
  },
  "luminance": 0.07377
}

Semantic roles & 50–950 ramp

primary

#2C40B1

secondary

#C6B973

accent

#CB44E3

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2C40B1

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

Preview Lab → · Contrast checker → · Palette generator →