#2A337C#2A337C

#2A337C is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.9% C 0.123 H 273.2°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#2A337C
RGB	rgb(42, 51, 124)
HSL	hsl(233, 49%, 33%)
HSV	hsv(233, 66%, 49%)
CMYK	cmyk(66.1%, 58.9%, 0%, 51.4%)
CIE-LAB	lab(24.69, 21.20, -42.77)
CIE-LCH	lch(24.69, 47.73, 296.37°)
OKLab	oklab(35.9% 0.0069 -0.1229)
OKLCH	oklch(35.9% 0.123 273.2)
XYZ	xyz(5.7756, 4.3146, 19.5933)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A337C #7C732A

analogous

#2A5C7C #2A337C #4A2A7C

triadic

#2A337C #7C2A33 #337C2A

tetradic

#2A337C #7C2A5C #7C732A #2A7C4A

square

#2A337C #7C2A5C #7C732A #2A7C4A

split-complementary

#2A337C #7C4A2A #5C7C2A

monochromatic

#0B0D21 #1B204E #2A337C #3946AA #5965C7

Accessibility & contrast

On white

11.27

#2A337C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#2A337C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A337C

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A337C	#FFFFFF	#000000	##FFFFFF
##2A337C	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	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: #2a337c;
/* rgb */ color: rgb(42, 51, 124);
/* oklch */ color: oklch(35.9% 0.123 273.2);

Tailwind

colors: {
  custom: {
    50: '#6d6aa2',
    500: '#2a337c',
    950: '#000000',
  },
}

SCSS

$custom: #2a337c;
$custom-light: #6d6aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#2a337c",
  "rgb": {
    "r": 42,
    "g": 51,
    "b": 124
  },
  "hsl": {
    "h": 233.415,
    "s": 49.398,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35902,
    "c": 0.12314,
    "h": 273.2
  },
  "luminance": 0.04315
}

Semantic roles & 50–950 ramp

primary

#2A337C

secondary

#ADA355

accent

#CA4FD9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#08060F

muted

#7A7A7F

Preview Lab

Preview with #2A337C

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

Preview Lab → · Contrast checker → · Palette generator →