#2B40A6#2B40A6

#2B40A6 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.165 H 269.1°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#2B40A6
RGB	rgb(43, 64, 166)
HSL	hsl(230, 59%, 41%)
HSV	hsv(230, 74%, 65%)
CMYK	cmyk(74.1%, 61.4%, 0%, 34.9%)
CIE-LAB	lab(31.65, 28.34, -57.27)
CIE-LCH	lch(31.65, 63.90, 296.33°)
OKLab	oklab(42.18% -0.0027 -0.1654)
OKLCH	oklch(42.18% 0.165 269.1)
XYZ	xyz(9.7102, 6.9325, 36.8954)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B40A6 #A6912B

analogous

#2B7DA6 #2B40A6 #532BA6

triadic

#2B40A6 #A62B40 #40A62B

tetradic

#2B40A6 #A62B7D #A6912B #2BA653

square

#2B40A6 #A62B7D #A6912B #2BA653

split-complementary

#2B40A6 #A6532B #7DA62B

monochromatic

#121B45 #1E2D75 #2B40A6 #4159CE #7183DA

Accessibility & contrast

On white

8.80

#2B40A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#2B40A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B40A6

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B40A6	#FFFFFF	#000000	##FFFFFF
##2B40A6	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A9

Deuteranopia (green-blind)

#0045A4

Tritanopia (blue-blind)

#005A6D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2b40a6;
/* rgb */ color: rgb(43, 64, 166);
/* oklch */ color: oklch(42.2% 0.165 269.1);

Tailwind

colors: {
  custom: {
    50: '#7674c1',
    500: '#2b40a6',
    950: '#000000',
  },
}

SCSS

$custom: #2b40a6;
$custom-light: #7674c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b40a6",
  "rgb": {
    "r": 43,
    "g": 64,
    "b": 166
  },
  "hsl": {
    "h": 229.756,
    "s": 58.852,
    "l": 40.98
  },
  "oklch": {
    "l": 0.42178,
    "c": 0.16541,
    "h": 269.1
  },
  "luminance": 0.06934
}

Semantic roles & 50–950 ramp

primary

#2B40A6

secondary

#C1B36B

accent

#C746E2

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2B40A6

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

Preview Lab → · Contrast checker → · Palette generator →