#2C40B5#2C40B5

#2C40B5 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.6% C 0.185 H 269.3°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#2C40B5
RGB	rgb(44, 64, 181)
HSL	hsl(231, 61%, 44%)
HSV	hsv(231, 76%, 71%)
CMYK	cmyk(75.7%, 64.6%, 0%, 29%)
CIE-LAB	lab(33.00, 33.99, -64.02)
CIE-LCH	lch(33.00, 72.48, 297.97°)
OKLab	oklab(43.59% -0.0022 -0.1851)
OKLCH	oklch(43.59% 0.185 269.3)
XYZ	xyz(11.2097, 7.5372, 44.5712)
Luminance	0.0754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C40B5 #B5A12C

analogous

#2C85B5 #2C40B5 #5D2CB5

triadic

#2C40B5 #B52C40 #40B52C

tetradic

#2C40B5 #B52C85 #B5A12C #2CB55D

square

#2C40B5 #B52C85 #B5A12C #2CB55D

split-complementary

#2C40B5 #B55D2C #85B52C

monochromatic

#141D53 #202F84 #2C40B5 #4B5FD3 #7C8BDF

Accessibility & contrast

On white

8.37

#2C40B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#2C40B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C40B5

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C40B5	#FFFFFF	#000000	##FFFFFF
##2C40B5	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B9

Deuteranopia (green-blind)

#0047B3

Tritanopia (blue-blind)

#005F74

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2c40b5;
/* rgb */ color: rgb(44, 64, 181);
/* oklch */ color: oklch(43.6% 0.185 269.3);

Tailwind

colors: {
  custom: {
    50: '#7a74cc',
    500: '#2c40b5',
    950: '#000000',
  },
}

SCSS

$custom: #2c40b5;
$custom-light: #7a74cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2c40b5",
  "rgb": {
    "r": 44,
    "g": 64,
    "b": 181
  },
  "hsl": {
    "h": 231.241,
    "s": 60.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43586,
    "c": 0.18515,
    "h": 269.3
  },
  "luminance": 0.07538
}

Semantic roles & 50–950 ramp

primary

#2C40B5

secondary

#C8BC75

accent

#CD44E4

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2C40B5

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

Preview Lab → · Contrast checker → · Palette generator →