#2A337F#2A337F

#2A337F is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.2% C 0.128 H 273.1°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#2A337F
RGB	rgb(42, 51, 127)
HSL	hsl(234, 50%, 33%)
HSV	hsv(234, 67%, 50%)
CMYK	cmyk(66.9%, 59.8%, 0%, 50.2%)
CIE-LAB	lab(24.93, 22.33, -44.27)
CIE-LCH	lch(24.93, 49.58, 296.77°)
OKLab	oklab(36.16% 0.0069 -0.1274)
OKLCH	oklch(36.16% 0.128 273.1)
XYZ	xyz(5.9682, 4.3917, 20.6077)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A337F #7F762A

analogous

#2A5D7F #2A337F #4B2A7F

triadic

#2A337F #7F2A33 #337F2A

tetradic

#2A337F #7F2A5D #7F762A #2A7F4B

square

#2A337F #7F2A5D #7F762A #2A7F4B

split-complementary

#2A337F #7F4B2A #5D7F2A

monochromatic

#0C0E23 #1B2151 #2A337F #3945AD #5B66C9

Accessibility & contrast

On white

11.18

#2A337F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#2A337F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A337F

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A337F	#FFFFFF	#000000	##FFFFFF
##2A337F	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F82

Deuteranopia (green-blind)

#00377D

Tritanopia (blue-blind)

#004553

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2a337f;
/* rgb */ color: rgb(42, 51, 127);
/* oklch */ color: oklch(36.2% 0.128 273.1);

Tailwind

colors: {
  custom: {
    50: '#6e6aa5',
    500: '#2a337f',
    950: '#000000',
  },
}

SCSS

$custom: #2a337f;
$custom-light: #6e6aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#2a337f",
  "rgb": {
    "r": 42,
    "g": 51,
    "b": 127
  },
  "hsl": {
    "h": 233.647,
    "s": 50.296,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36158,
    "c": 0.12756,
    "h": 273.1
  },
  "luminance": 0.04392
}

Semantic roles & 50–950 ramp

primary

#2A337F

secondary

#AEA557

accent

#CB4EDA

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2A337F

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

Preview Lab → · Contrast checker → · Palette generator →