#2B3DB0#2B3DB0

#2B3DB0 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.182 H 269.7°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#2B3DB0
RGB	rgb(43, 61, 176)
HSL	hsl(232, 61%, 43%)
HSV	hsv(232, 76%, 69%)
CMYK	cmyk(75.6%, 65.3%, 0%, 31%)
CIE-LAB	lab(31.77, 33.99, -63.06)
CIE-LCH	lch(31.77, 71.64, 298.33°)
OKLab	oklab(42.53% -0.001 -0.1824)
OKLCH	oklch(42.53% 0.182 269.7)
XYZ	xyz(10.4988, 6.9845, 41.8607)
Luminance	0.0699 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3DB0 #B09E2B

analogous

#2B7FB0 #2B3DB0 #5C2BB0

triadic

#2B3DB0 #B02B3D #3DB02B

tetradic

#2B3DB0 #B02B7F #B09E2B #2BB05C

square

#2B3DB0 #B02B7F #B09E2B #2BB05C

split-complementary

#2B3DB0 #B05C2B #7FB02B

monochromatic

#131B4E #1F2C7F #2B3DB0 #4659D2 #7885DE

Accessibility & contrast

On white

8.76

#2B3DB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2B3DB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3DB0

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3DB0	#FFFFFF	#000000	##FFFFFF
##2B3DB0	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B4

Deuteranopia (green-blind)

#0045AE

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2b3db0;
/* rgb */ color: rgb(43, 61, 176);
/* oklch */ color: oklch(42.5% 0.182 269.7);

Tailwind

colors: {
  custom: {
    50: '#7972c9',
    500: '#2b3db0',
    950: '#000000',
  },
}

SCSS

$custom: #2b3db0;
$custom-light: #7972c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3db0",
  "rgb": {
    "r": 43,
    "g": 61,
    "b": 176
  },
  "hsl": {
    "h": 231.88,
    "s": 60.731,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42534,
    "c": 0.18239,
    "h": 269.7
  },
  "luminance": 0.06986
}

Semantic roles & 50–950 ramp

primary

#2B3DB0

secondary

#C6BA71

accent

#CE44E4

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2B3DB0

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

Preview Lab → · Contrast checker → · Palette generator →