#2B40A1#2B40A1

#2B40A1 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.7% C 0.159 H 269.0°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#2B40A1
RGB	rgb(43, 64, 161)
HSL	hsl(229, 58%, 40%)
HSV	hsv(229, 73%, 63%)
CMYK	cmyk(73.3%, 60.2%, 0%, 36.9%)
CIE-LAB	lab(31.24, 26.47, -54.94)
CIE-LCH	lch(31.24, 60.98, 295.72°)
OKLab	oklab(41.74% -0.0027 -0.1585)
OKLCH	oklch(41.74% 0.159 269)
XYZ	xyz(9.2605, 6.7526, 34.5266)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B40A1 #A18C2B

analogous

#2B7BA1 #2B40A1 #512BA1

triadic

#2B40A1 #A12B40 #40A12B

tetradic

#2B40A1 #A12B7B #A18C2B #2BA151

square

#2B40A1 #A12B7B #A18C2B #2BA151

split-complementary

#2B40A1 #A1512B #7BA12B

monochromatic

#111A40 #1E2D71 #2B40A1 #3E57CB #6E81D8

Accessibility & contrast

On white

8.93

#2B40A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#2B40A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B40A1

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B40A1	#FFFFFF	#000000	##FFFFFF
##2B40A1	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA4

Deuteranopia (green-blind)

#00449F

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2b40a1;
/* rgb */ color: rgb(43, 64, 161);
/* oklch */ color: oklch(41.7% 0.159 269.0);

Tailwind

colors: {
  custom: {
    50: '#7574be',
    500: '#2b40a1',
    950: '#000000',
  },
}

SCSS

$custom: #2b40a1;
$custom-light: #7574be;
$custom-dark: #000000;

JSON

{
  "hex": "#2b40a1",
  "rgb": {
    "r": 43,
    "g": 64,
    "b": 161
  },
  "hsl": {
    "h": 229.322,
    "s": 57.843,
    "l": 40
  },
  "oklch": {
    "l": 0.41739,
    "c": 0.15857,
    "h": 269
  },
  "luminance": 0.06754
}

Semantic roles & 50–950 ramp

primary

#2B40A1

secondary

#BFB069

accent

#C647E1

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2B40A1

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

Preview Lab → · Contrast checker → · Palette generator →