#2B43B3#2B43B3

#2B43B3 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.9% C 0.179 H 268.4°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#2B43B3
RGB	rgb(43, 67, 179)
HSL	hsl(229, 61%, 44%)
HSV	hsv(229, 76%, 70%)
CMYK	cmyk(76%, 62.6%, 0%, 29.8%)
CIE-LAB	lab(33.52, 31.21, -61.98)
CIE-LCH	lch(33.52, 69.39, 296.73°)
OKLab	oklab(43.91% -0.0049 -0.1792)
OKLCH	oklch(43.91% 0.179 268.4)
XYZ	xyz(11.1373, 7.7814, 43.5541)
Luminance	0.0778 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B43B3 #B39B2B

analogous

#2B87B3 #2B43B3 #572BB3

triadic

#2B43B3 #B32B43 #43B32B

tetradic

#2B43B3 #B32B87 #B39B2B #2BB357

square

#2B43B3 #B32B87 #B39B2B #2BB357

split-complementary

#2B43B3 #B3572B #87B32B

monochromatic

#131E50 #1F3182 #2B43B3 #4861D3 #798BDF

Accessibility & contrast

On white

8.21

#2B43B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#2B43B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B43B3

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B43B3	#FFFFFF	#000000	##FFFFFF
##2B43B3	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B7

Deuteranopia (green-blind)

#0049B1

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2b43b3;
/* rgb */ color: rgb(43, 67, 179);
/* oklch */ color: oklch(43.9% 0.179 268.4);

Tailwind

colors: {
  custom: {
    50: '#7977cb',
    500: '#2b43b3',
    950: '#000000',
  },
}

SCSS

$custom: #2b43b3;
$custom-light: #7977cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b43b3",
  "rgb": {
    "r": 43,
    "g": 67,
    "b": 179
  },
  "hsl": {
    "h": 229.412,
    "s": 61.261,
    "l": 43.529
  },
  "oklch": {
    "l": 0.43905,
    "c": 0.17923,
    "h": 268.4
  },
  "luminance": 0.07783
}

Semantic roles & 50–950 ramp

primary

#2B43B3

secondary

#C7B873

accent

#C843E4

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2B43B3

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

Preview Lab → · Contrast checker → · Palette generator →