#2B3FAD#2B3FAD

#2B3FAD is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.6% C 0.176 H 269.3°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#2B3FAD
RGB	rgb(43, 63, 173)
HSL	hsl(231, 60%, 42%)
HSV	hsv(231, 75%, 68%)
CMYK	cmyk(75.1%, 63.6%, 0%, 32.2%)
CIE-LAB	lab(32.00, 31.60, -60.90)
CIE-LCH	lch(32.00, 68.61, 297.42°)
OKLab	oklab(42.62% -0.0022 -0.176)
OKLCH	oklch(42.62% 0.176 269.3)
XYZ	xyz(10.3140, 7.0846, 40.3510)
Luminance	0.0709 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3FAD #AD992B

analogous

#2B80AD #2B3FAD #582BAD

triadic

#2B3FAD #AD2B3F #3FAD2B

tetradic

#2B3FAD #AD2B80 #AD992B #2BAD58

square

#2B3FAD #AD2B80 #AD992B #2BAD58

split-complementary

#2B3FAD #AD582B #80AD2B

monochromatic

#131B4B #1F2D7C #2B3FAD #455AD1 #7685DD

Accessibility & contrast

On white

8.69

#2B3FAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#2B3FAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3FAD

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3FAD	#FFFFFF	#000000	##FFFFFF
##2B3FAD	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B1

Deuteranopia (green-blind)

#0045AB

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2b3fad;
/* rgb */ color: rgb(43, 63, 173);
/* oklch */ color: oklch(42.6% 0.176 269.3);

Tailwind

colors: {
  custom: {
    50: '#7874c6',
    500: '#2b3fad',
    950: '#000000',
  },
}

SCSS

$custom: #2b3fad;
$custom-light: #7874c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3fad",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 173
  },
  "hsl": {
    "h": 230.769,
    "s": 60.185,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42619,
    "c": 0.17605,
    "h": 269.3
  },
  "luminance": 0.07086
}

Semantic roles & 50–950 ramp

primary

#2B3FAD

secondary

#C4B76F

accent

#CB44E3

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2B3FAD

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

Preview Lab → · Contrast checker → · Palette generator →