#2B337F#2B337F

#2B337F is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.2% C 0.127 H 273.7°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#2B337F
RGB	rgb(43, 51, 127)
HSL	hsl(234, 49%, 33%)
HSV	hsv(234, 66%, 50%)
CMYK	cmyk(66.1%, 59.8%, 0%, 50.2%)
CIE-LAB	lab(24.99, 22.50, -44.16)
CIE-LCH	lch(24.99, 49.56, 297.00°)
OKLab	oklab(36.22% 0.0081 -0.127)
OKLCH	oklch(36.22% 0.127 273.7)
XYZ	xyz(6.0096, 4.4130, 20.6097)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B337F #7F772B

analogous

#2B5D7F #2B337F #4D2B7F

triadic

#2B337F #7F2B33 #337F2B

tetradic

#2B337F #7F2B5D #7F772B #2B7F4D

square

#2B337F #7F2B5D #7F772B #2B7F4D

split-complementary

#2B337F #7F4D2B #5D7F2B

monochromatic

#0C0E24 #1C2151 #2B337F #3A45AD #5C67C8

Accessibility & contrast

On white

11.15

#2B337F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#2B337F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B337F

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B337F	#FFFFFF	#000000	##FFFFFF
##2B337F	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F82

Deuteranopia (green-blind)

#00387D

Tritanopia (blue-blind)

#004553

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2b337f;
/* rgb */ color: rgb(43, 51, 127);
/* oklch */ color: oklch(36.2% 0.127 273.7);

Tailwind

colors: {
  custom: {
    50: '#6f6aa5',
    500: '#2b337f',
    950: '#000000',
  },
}

SCSS

$custom: #2b337f;
$custom-light: #6f6aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b337f",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 127
  },
  "hsl": {
    "h": 234.286,
    "s": 49.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.36224,
    "c": 0.12727,
    "h": 273.7
  },
  "luminance": 0.04414
}

Semantic roles & 50–950 ramp

primary

#2B337F

secondary

#AEA658

accent

#CC4FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2B337F

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

Preview Lab → · Contrast checker → · Palette generator →