#2B337C#2B337C

#2B337C is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.0% C 0.123 H 273.8°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#2B337C
RGB	rgb(43, 51, 124)
HSL	hsl(234, 49%, 33%)
HSV	hsv(234, 65%, 49%)
CMYK	cmyk(65.3%, 58.9%, 0%, 51.4%)
CIE-LAB	lab(24.75, 21.38, -42.65)
CIE-LCH	lch(24.75, 47.71, 296.63°)
OKLab	oklab(35.97% 0.0081 -0.1226)
OKLCH	oklch(35.97% 0.123 273.8)
XYZ	xyz(5.8170, 4.3360, 19.5953)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B337C #7C742B

analogous

#2B5B7C #2B337C #4B2B7C

triadic

#2B337C #7C2B33 #337C2B

tetradic

#2B337C #7C2B5B #7C742B #2B7C4B

square

#2B337C #7C2B5B #7C742B #2B7C4B

split-complementary

#2B337C #7C4B2B #5B7C2B

monochromatic

#0B0E21 #1B204F #2B337C #3B46A9 #5B66C6

Accessibility & contrast

On white

11.25

#2B337C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2B337C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B337C

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B337C	#FFFFFF	#000000	##FFFFFF
##2B337C	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7E

Deuteranopia (green-blind)

#00377B

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2b337c;
/* rgb */ color: rgb(43, 51, 124);
/* oklch */ color: oklch(36.0% 0.123 273.8);

Tailwind

colors: {
  custom: {
    50: '#6e6aa2',
    500: '#2b337c',
    950: '#000000',
  },
}

SCSS

$custom: #2b337c;
$custom-light: #6e6aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b337c",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 124
  },
  "hsl": {
    "h": 234.074,
    "s": 48.503,
    "l": 32.745
  },
  "oklch": {
    "l": 0.3597,
    "c": 0.12287,
    "h": 273.8
  },
  "luminance": 0.04336
}

Semantic roles & 50–950 ramp

primary

#2B337C

secondary

#ACA457

accent

#CB50D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2B337C

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

Preview Lab → · Contrast checker → · Palette generator →