#2A40A9#2A40A9

#2A40A9 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.170 H 268.8°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#2A40A9
RGB	rgb(42, 64, 169)
HSL	hsl(230, 60%, 41%)
HSV	hsv(230, 75%, 66%)
CMYK	cmyk(75.1%, 62.1%, 0%, 33.7%)
CIE-LAB	lab(31.86, 29.34, -58.74)
CIE-LCH	lch(31.86, 65.66, 296.54°)
OKLab	oklab(42.4% -0.0037 -0.1697)
OKLCH	oklch(42.4% 0.17 268.8)
XYZ	xyz(9.9472, 7.0225, 38.3597)
Luminance	0.0702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A40A9 #A9932A

analogous

#2A80A9 #2A40A9 #542AA9

triadic

#2A40A9 #A92A40 #40A92A

tetradic

#2A40A9 #A92A80 #A9932A #2AA954

square

#2A40A9 #A92A80 #A9932A #2AA954

split-complementary

#2A40A9 #A9542A #80A92A

monochromatic

#121B47 #1E2D78 #2A40A9 #4159D0 #7284DC

Accessibility & contrast

On white

8.73

#2A40A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2A40A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A40A9

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A40A9	#FFFFFF	#000000	##FFFFFF
##2A40A9	1.00	8.73	2.40	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AC

Deuteranopia (green-blind)

#0045A7

Tritanopia (blue-blind)

#005B6E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2a40a9;
/* rgb */ color: rgb(42, 64, 169);
/* oklch */ color: oklch(42.4% 0.170 268.8);

Tailwind

colors: {
  custom: {
    50: '#7774c3',
    500: '#2a40a9',
    950: '#000000',
  },
}

SCSS

$custom: #2a40a9;
$custom-light: #7774c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2a40a9",
  "rgb": {
    "r": 42,
    "g": 64,
    "b": 169
  },
  "hsl": {
    "h": 229.606,
    "s": 60.19,
    "l": 41.373
  },
  "oklch": {
    "l": 0.42395,
    "c": 0.16976,
    "h": 268.8
  },
  "luminance": 0.07024
}

Semantic roles & 50–950 ramp

primary

#2A40A9

secondary

#C3B46C

accent

#C844E3

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2A40A9

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

Preview Lab → · Contrast checker → · Palette generator →