#2B3FAC#2B3FAC

#2B3FAC is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.175 H 269.3°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#2B3FAC
RGB	rgb(43, 63, 172)
HSL	hsl(231, 60%, 42%)
HSV	hsv(231, 75%, 67%)
CMYK	cmyk(75%, 63.4%, 0%, 32.5%)
CIE-LAB	lab(31.91, 31.23, -60.45)
CIE-LCH	lch(31.91, 68.04, 297.32°)
OKLab	oklab(42.53% -0.0021 -0.1747)
OKLCH	oklch(42.53% 0.175 269.3)
XYZ	xyz(10.2176, 7.0461, 39.8433)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3FAC #AC982B

analogous

#2B7FAC #2B3FAC #582BAC

triadic

#2B3FAC #AC2B3F #3FAC2B

tetradic

#2B3FAC #AC2B7F #AC982B #2BAC58

square

#2B3FAC #AC2B7F #AC982B #2BAC58

split-complementary

#2B3FAC #AC582B #7FAC2B

monochromatic

#131B4A #1F2D7B #2B3FAC #445AD0 #7585DC

Accessibility & contrast

On white

8.72

#2B3FAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2B3FAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3FAC

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3FAC	#FFFFFF	#000000	##FFFFFF
##2B3FAC	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B0

Deuteranopia (green-blind)

#0045AA

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2b3fac;
/* rgb */ color: rgb(43, 63, 172);
/* oklch */ color: oklch(42.5% 0.175 269.3);

Tailwind

colors: {
  custom: {
    50: '#7874c6',
    500: '#2b3fac',
    950: '#000000',
  },
}

SCSS

$custom: #2b3fac;
$custom-light: #7874c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3fac",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 172
  },
  "hsl": {
    "h": 230.698,
    "s": 60,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42528,
    "c": 0.17472,
    "h": 269.3
  },
  "luminance": 0.07047
}

Semantic roles & 50–950 ramp

primary

#2B3FAC

secondary

#C4B76F

accent

#CB45E3

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2B3FAC

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

Preview Lab → · Contrast checker → · Palette generator →