#2B3780#2B3780

#2B3780 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.1% C 0.123 H 272.0°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#2B3780
RGB	rgb(43, 55, 128)
HSL	hsl(232, 50%, 34%)
HSV	hsv(232, 66%, 50%)
CMYK	cmyk(66.4%, 57%, 0%, 49.8%)
CIE-LAB	lab(26.17, 20.13, -42.88)
CIE-LCH	lch(26.17, 47.37, 295.15°)
OKLab	oklab(37.13% 0.0042 -0.1232)
OKLCH	oklch(37.13% 0.123 272)
XYZ	xyz(6.2574, 4.8039, 21.0154)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3780 #80742B

analogous

#2B6180 #2B3780 #492B80

triadic

#2B3780 #802B37 #37802B

tetradic

#2B3780 #802B61 #80742B #2B8049

square

#2B3780 #802B61 #80742B #2B8049

split-complementary

#2B3780 #80492B #61802B

monochromatic

#0C1024 #1C2352 #2B3780 #3A4BAE #5D6CC9

Accessibility & contrast

On white

10.71

#2B3780 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#2B3780 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3780

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3780	#FFFFFF	#000000	##FFFFFF
##2B3780	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004283

Deuteranopia (green-blind)

#003A7F

Tritanopia (blue-blind)

#004856

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b3780;
/* rgb */ color: rgb(43, 55, 128);
/* oklch */ color: oklch(37.1% 0.123 272.0);

Tailwind

colors: {
  custom: {
    50: '#6e6da5',
    500: '#2b3780',
    950: '#000000',
  },
}

SCSS

$custom: #2b3780;
$custom-light: #6e6da5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3780",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 128
  },
  "hsl": {
    "h": 231.529,
    "s": 49.708,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37127,
    "c": 0.12327,
    "h": 272
  },
  "luminance": 0.04804
}

Semantic roles & 50–950 ramp

primary

#2B3780

secondary

#AEA258

accent

#C64FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2B3780

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

Preview Lab → · Contrast checker → · Palette generator →