#2B43B0#2B43B0

#2B43B0 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.6% C 0.175 H 268.4°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#2B43B0
RGB	rgb(43, 67, 176)
HSL	hsl(229, 61%, 43%)
HSV	hsv(229, 76%, 69%)
CMYK	cmyk(75.6%, 61.9%, 0%, 31%)
CIE-LAB	lab(33.27, 30.09, -60.61)
CIE-LCH	lch(33.27, 67.67, 296.40°)
OKLab	oklab(43.64% -0.0049 -0.1752)
OKLCH	oklch(43.64% 0.175 268.4)
XYZ	xyz(10.8372, 7.6613, 41.9735)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B43B0 #B0982B

analogous

#2B85B0 #2B43B0 #552BB0

triadic

#2B43B0 #B02B43 #43B02B

tetradic

#2B43B0 #B02B85 #B0982B #2BB055

square

#2B43B0 #B02B85 #B0982B #2BB055

split-complementary

#2B43B0 #B0552B #85B02B

monochromatic

#131E4E #1F307F #2B43B0 #4660D2 #788ADE

Accessibility & contrast

On white

8.29

#2B43B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#2B43B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B43B0

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B43B0	#FFFFFF	#000000	##FFFFFF
##2B43B0	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B4

Deuteranopia (green-blind)

#0048AE

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2b43b0;
/* rgb */ color: rgb(43, 67, 176);
/* oklch */ color: oklch(43.6% 0.175 268.4);

Tailwind

colors: {
  custom: {
    50: '#7977c9',
    500: '#2b43b0',
    950: '#000000',
  },
}

SCSS

$custom: #2b43b0;
$custom-light: #7977c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b43b0",
  "rgb": {
    "r": 43,
    "g": 67,
    "b": 176
  },
  "hsl": {
    "h": 229.173,
    "s": 60.731,
    "l": 42.941
  },
  "oklch": {
    "l": 0.43636,
    "c": 0.17523,
    "h": 268.4
  },
  "luminance": 0.07662
}

Semantic roles & 50–950 ramp

primary

#2B43B0

secondary

#C6B671

accent

#C744E4

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2B43B0

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

Preview Lab → · Contrast checker → · Palette generator →