#2A40A3#2A40A3

#2A40A3 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.9% C 0.162 H 268.7°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#2A40A3
RGB	rgb(42, 64, 163)
HSL	hsl(229, 59%, 40%)
HSV	hsv(229, 74%, 64%)
CMYK	cmyk(74.2%, 60.7%, 0%, 36.1%)
CIE-LAB	lab(31.35, 27.09, -55.96)
CIE-LCH	lch(31.35, 62.17, 295.83°)
OKLab	oklab(41.86% -0.0036 -0.1616)
OKLCH	oklch(41.86% 0.162 268.7)
XYZ	xyz(9.3968, 6.8024, 35.4610)
Luminance	0.0680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A40A3 #A38D2A

analogous

#2A7CA3 #2A40A3 #512AA3

triadic

#2A40A3 #A32A40 #40A32A

tetradic

#2A40A3 #A32A7C #A38D2A #2AA351

square

#2A40A3 #A32A7C #A38D2A #2AA351

split-complementary

#2A40A3 #A3512A #7CA32A

monochromatic

#111A42 #1D2D72 #2A40A3 #3D57CD #6E81DA

Accessibility & contrast

On white

8.90

#2A40A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#2A40A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A40A3

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A40A3	#FFFFFF	#000000	##FFFFFF
##2A40A3	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A6

Deuteranopia (green-blind)

#0044A1

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2a40a3;
/* rgb */ color: rgb(42, 64, 163);
/* oklch */ color: oklch(41.9% 0.162 268.7);

Tailwind

colors: {
  custom: {
    50: '#7574bf',
    500: '#2a40a3',
    950: '#000000',
  },
}

SCSS

$custom: #2a40a3;
$custom-light: #7574bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2a40a3",
  "rgb": {
    "r": 42,
    "g": 64,
    "b": 163
  },
  "hsl": {
    "h": 229.091,
    "s": 59.024,
    "l": 40.196
  },
  "oklch": {
    "l": 0.41864,
    "c": 0.1616,
    "h": 268.7
  },
  "luminance": 0.06803
}

Semantic roles & 50–950 ramp

primary

#2A40A3

secondary

#C0B068

accent

#C646E2

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2A40A3

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

Preview Lab → · Contrast checker → · Palette generator →