#2C40B8#2C40B8

#2C40B8 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.9% C 0.189 H 269.3°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#2C40B8
RGB	rgb(44, 64, 184)
HSL	hsl(231, 61%, 45%)
HSV	hsv(231, 76%, 72%)
CMYK	cmyk(76.1%, 65.2%, 0%, 27.8%)
CIE-LAB	lab(33.27, 35.09, -65.35)
CIE-LCH	lch(33.27, 74.18, 298.23°)
OKLab	oklab(43.86% -0.0023 -0.189)
OKLCH	oklch(43.86% 0.189 269.3)
XYZ	xyz(11.5209, 7.6617, 46.2098)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C40B8 #B8A42C

analogous

#2C86B8 #2C40B8 #5E2CB8

triadic

#2C40B8 #B82C40 #40B82C

tetradic

#2C40B8 #B82C86 #B8A42C #2CB85E

square

#2C40B8 #B82C86 #B8A42C #2CB85E

split-complementary

#2C40B8 #B85E2C #86B82C

monochromatic

#141E55 #202F87 #2C40B8 #4D60D4 #7E8CE0

Accessibility & contrast

On white

8.29

#2C40B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#2C40B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C40B8

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C40B8	#FFFFFF	#000000	##FFFFFF
##2C40B8	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BC

Deuteranopia (green-blind)

#0048B6

Tritanopia (blue-blind)

#006076

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2c40b8;
/* rgb */ color: rgb(44, 64, 184);
/* oklch */ color: oklch(43.9% 0.189 269.3);

Tailwind

colors: {
  custom: {
    50: '#7b75ce',
    500: '#2c40b8',
    950: '#000000',
  },
}

SCSS

$custom: #2c40b8;
$custom-light: #7b75ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2c40b8",
  "rgb": {
    "r": 44,
    "g": 64,
    "b": 184
  },
  "hsl": {
    "h": 231.429,
    "s": 61.404,
    "l": 44.706
  },
  "oklch": {
    "l": 0.43865,
    "c": 0.18906,
    "h": 269.3
  },
  "luminance": 0.07663
}

Semantic roles & 50–950 ramp

primary

#2C40B8

secondary

#C9BD77

accent

#CD43E5

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2C40B8

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

Preview Lab → · Contrast checker → · Palette generator →