#2B3CB1#2B3CB1

#2B3CB1 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.185 H 269.8°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#2B3CB1
RGB	rgb(43, 60, 177)
HSL	hsl(232, 61%, 43%)
HSV	hsv(232, 76%, 69%)
CMYK	cmyk(75.7%, 66.1%, 0%, 30.6%)
CIE-LAB	lab(31.62, 35.00, -63.91)
CIE-LCH	lch(31.62, 72.86, 298.71°)
OKLab	oklab(42.45% -0.0005 -0.1849)
OKLCH	oklch(42.45% 0.185 269.8)
XYZ	xyz(10.5452, 6.9185, 42.3661)
Luminance	0.0692 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3CB1 #B1A02B

analogous

#2B7FB1 #2B3CB1 #5D2BB1

triadic

#2B3CB1 #B12B3C #3CB12B

tetradic

#2B3CB1 #B12B7F #B1A02B #2BB15D

square

#2B3CB1 #B12B7F #B1A02B #2BB15D

split-complementary

#2B3CB1 #B15D2B #7FB12B

monochromatic

#131B4F #1F2B80 #2B3CB1 #4759D2 #7885DE

Accessibility & contrast

On white

8.81

#2B3CB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#2B3CB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3CB1

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3CB1	#FFFFFF	#000000	##FFFFFF
##2B3CB1	1.00	8.81	2.38	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B5

Deuteranopia (green-blind)

#0044AF

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2b3cb1;
/* rgb */ color: rgb(43, 60, 177);
/* oklch */ color: oklch(42.5% 0.185 269.8);

Tailwind

colors: {
  custom: {
    50: '#7972c9',
    500: '#2b3cb1',
    950: '#000000',
  },
}

SCSS

$custom: #2b3cb1;
$custom-light: #7972c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3cb1",
  "rgb": {
    "r": 43,
    "g": 60,
    "b": 177
  },
  "hsl": {
    "h": 232.388,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42452,
    "c": 0.18486,
    "h": 269.8
  },
  "luminance": 0.0692
}

Semantic roles & 50–950 ramp

primary

#2B3CB1

secondary

#C6BB72

accent

#D044E4

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2B3CB1

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

Preview Lab → · Contrast checker → · Palette generator →