#2A40B7#2A40B7

#2A40B7 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.7% C 0.188 H 268.7°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#2A40B7
RGB	rgb(42, 64, 183)
HSL	hsl(231, 63%, 44%)
HSV	hsv(231, 77%, 72%)
CMYK	cmyk(77%, 65%, 0%, 28.2%)
CIE-LAB	lab(33.09, 34.52, -65.07)
CIE-LCH	lch(33.09, 73.65, 297.95°)
OKLab	oklab(43.68% -0.0041 -0.1882)
OKLCH	oklch(43.68% 0.188 268.7)
XYZ	xyz(11.3325, 7.5767, 45.6557)
Luminance	0.0758 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.00

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A40B7 #B7A12A

analogous

#2A87B7 #2A40B7 #5A2AB7

triadic

#2A40B7 #B72A40 #40B72A

tetradic

#2A40B7 #B72A87 #B7A12A #2AB75A

square

#2A40B7 #B72A87 #B7A12A #2AB75A

split-complementary

#2A40B7 #B75A2A #87B72A

monochromatic

#131D53 #1F2F85 #2A40B7 #495FD5 #7B8BE1

Accessibility & contrast

On white

8.35

#2A40B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#2A40B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A40B7

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A40B7	#FFFFFF	#000000	##FFFFFF
##2A40B7	1.00	8.35	2.52	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BB

Deuteranopia (green-blind)

#0047B5

Tritanopia (blue-blind)

#006075

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2a40b7;
/* rgb */ color: rgb(42, 64, 183);
/* oklch */ color: oklch(43.7% 0.188 268.7);

Tailwind

colors: {
  custom: {
    50: '#7a74ce',
    500: '#2a40b7',
    950: '#000000',
  },
}

SCSS

$custom: #2a40b7;
$custom-light: #7a74ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2a40b7",
  "rgb": {
    "r": 42,
    "g": 64,
    "b": 183
  },
  "hsl": {
    "h": 230.638,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43678,
    "c": 0.1883,
    "h": 268.7
  },
  "luminance": 0.07578
}

Semantic roles & 50–950 ramp

primary

#2A40B7

secondary

#C9BC74

accent

#CC42E6

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2A40B7

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

Preview Lab → · Contrast checker → · Palette generator →