#2B40A3#2B40A3

#2B40A3 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.9% C 0.161 H 269.0°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#2B40A3
RGB	rgb(43, 64, 163)
HSL	hsl(230, 58%, 40%)
HSV	hsv(230, 74%, 64%)
CMYK	cmyk(73.6%, 60.7%, 0%, 36.1%)
CIE-LAB	lab(31.40, 27.22, -55.88)
CIE-LCH	lch(31.40, 62.15, 295.97°)
OKLab	oklab(41.91% -0.0027 -0.1613)
OKLCH	oklch(41.91% 0.161 269)
XYZ	xyz(9.4382, 6.8237, 35.4629)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B40A3 #A38E2B

analogous

#2B7CA3 #2B40A3 #522BA3

triadic

#2B40A3 #A32B40 #40A32B

tetradic

#2B40A3 #A32B7C #A38E2B #2BA352

square

#2B40A3 #A32B7C #A38E2B #2BA352

split-complementary

#2B40A3 #A3522B #7CA32B

monochromatic

#111A42 #1E2D73 #2B40A3 #3F58CC #6F82D9

Accessibility & contrast

On white

8.88

#2B40A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2B40A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B40A3

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B40A3	#FFFFFF	#000000	##FFFFFF
##2B40A3	1.00	8.88	2.37	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.88	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: #2b40a3;
/* rgb */ color: rgb(43, 64, 163);
/* oklch */ color: oklch(41.9% 0.161 269.0);

Tailwind

colors: {
  custom: {
    50: '#7674bf',
    500: '#2b40a3',
    950: '#000000',
  },
}

SCSS

$custom: #2b40a3;
$custom-light: #7674bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b40a3",
  "rgb": {
    "r": 43,
    "g": 64,
    "b": 163
  },
  "hsl": {
    "h": 229.5,
    "s": 58.252,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41914,
    "c": 0.16132,
    "h": 269
  },
  "luminance": 0.06825
}

Semantic roles & 50–950 ramp

primary

#2B40A3

secondary

#C0B16A

accent

#C646E1

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2B40A3

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

Preview Lab → · Contrast checker → · Palette generator →