#2B43B4#2B43B4

#2B43B4 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.0% C 0.181 H 268.4°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#2B43B4
RGB	rgb(43, 67, 180)
HSL	hsl(229, 61%, 44%)
HSV	hsv(229, 76%, 71%)
CMYK	cmyk(76.1%, 62.8%, 0%, 29.4%)
CIE-LAB	lab(33.61, 31.58, -62.43)
CIE-LCH	lch(33.61, 69.96, 296.83°)
OKLab	oklab(44% -0.0049 -0.1805)
OKLCH	oklch(44% 0.181 268.4)
XYZ	xyz(11.2388, 7.8220, 44.0886)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B43B4 #B49C2B

analogous

#2B87B4 #2B43B4 #572BB4

triadic

#2B43B4 #B42B43 #43B42B

tetradic

#2B43B4 #B42B87 #B49C2B #2BB457

square

#2B43B4 #B42B87 #B49C2B #2BB457

split-complementary

#2B43B4 #B4572B #87B42B

monochromatic

#131E51 #1F3183 #2B43B4 #4961D3 #7A8CDF

Accessibility & contrast

On white

8.19

#2B43B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#2B43B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B43B4

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B43B4	#FFFFFF	#000000	##FFFFFF
##2B43B4	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B8

Deuteranopia (green-blind)

#0049B2

Tritanopia (blue-blind)

#006075

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2b43b4;
/* rgb */ color: rgb(43, 67, 180);
/* oklch */ color: oklch(44.0% 0.181 268.4);

Tailwind

colors: {
  custom: {
    50: '#7a77cb',
    500: '#2b43b4',
    950: '#000000',
  },
}

SCSS

$custom: #2b43b4;
$custom-light: #7a77cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b43b4",
  "rgb": {
    "r": 43,
    "g": 67,
    "b": 180
  },
  "hsl": {
    "h": 229.489,
    "s": 61.435,
    "l": 43.725
  },
  "oklch": {
    "l": 0.43995,
    "c": 0.18055,
    "h": 268.4
  },
  "luminance": 0.07823
}

Semantic roles & 50–950 ramp

primary

#2B43B4

secondary

#C7B973

accent

#C843E5

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2B43B4

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

Preview Lab → · Contrast checker → · Palette generator →