#2B339B#2B339B

#2B339B is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.8% C 0.166 H 272.4°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#2B339B
RGB	rgb(43, 51, 155)
HSL	hsl(236, 57%, 39%)
HSV	hsv(236, 72%, 61%)
CMYK	cmyk(72.3%, 67.1%, 0%, 39.2%)
CIE-LAB	lab(27.43, 32.80, -57.53)
CIE-LCH	lch(27.43, 66.22, 299.69°)
OKLab	oklab(38.77% 0.0069 -0.1662)
OKLCH	oklch(38.77% 0.166 272.4)
XYZ	xyz(8.0945, 5.2470, 31.5902)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B339B #9B932B

analogous

#2B6B9B #2B339B #5B2B9B

triadic

#2B339B #9B2B33 #339B2B

tetradic

#2B339B #9B2B6B #9B932B #2B9B5B

square

#2B339B #9B2B6B #9B932B #2B9B5B

split-complementary

#2B339B #9B5B2B #6B9B2B

monochromatic

#10133B #1E236B #2B339B #3B45C9 #6B72D6

Accessibility & contrast

On white

10.25

#2B339B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2B339B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B339B

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B339B	#FFFFFF	#000000	##FFFFFF
##2B339B	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469E

Deuteranopia (green-blind)

#003C99

Tritanopia (blue-blind)

#004F62

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2b339b;
/* rgb */ color: rgb(43, 51, 155);
/* oklch */ color: oklch(38.8% 0.166 272.4);

Tailwind

colors: {
  custom: {
    50: '#756bb9',
    500: '#2b339b',
    950: '#000000',
  },
}

SCSS

$custom: #2b339b;
$custom-light: #756bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b339b",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 155
  },
  "hsl": {
    "h": 235.714,
    "s": 56.566,
    "l": 38.824
  },
  "oklch": {
    "l": 0.38771,
    "c": 0.16639,
    "h": 272.4
  },
  "luminance": 0.05248
}

Semantic roles & 50–950 ramp

primary

#2B339B

secondary

#BCB665

accent

#D548E0

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2B339B

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

Preview Lab → · Contrast checker → · Palette generator →