#2B3578#2B3578

#2B3578 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 36.1% C 0.114 H 272.9°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#2B3578
RGB	rgb(43, 53, 120)
HSL	hsl(232, 47%, 32%)
HSV	hsv(232, 64%, 47%)
CMYK	cmyk(64.2%, 55.8%, 0%, 52.9%)
CIE-LAB	lab(25.00, 18.51, -39.72)
CIE-LCH	lch(25.00, 43.82, 294.99°)
OKLab	oklab(36.06% 0.0058 -0.1139)
OKLCH	oklch(36.06% 0.114 272.9)
XYZ	xyz(5.6584, 4.4154, 18.3197)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3578 #786E2B

analogous

#2B5C78 #2B3578 #482B78

triadic

#2B3578 #782B35 #35782B

tetradic

#2B3578 #782B5C #786E2B #2B7848

square

#2B3578 #782B5C #786E2B #2B7848

split-complementary

#2B3578 #78482B #5C782B

monochromatic

#0B0D1E #1B214B #2B3578 #3B49A5 #5A67C4

Accessibility & contrast

On white

11.15

#2B3578 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#2B3578 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3578

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3578	#FFFFFF	#000000	##FFFFFF
##2B3578	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)

#093F7A

Deuteranopia (green-blind)

#003877

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2b3578;
/* rgb */ color: rgb(43, 53, 120);
/* oklch */ color: oklch(36.1% 0.114 272.9);

Tailwind

colors: {
  custom: {
    50: '#6d6c9f',
    500: '#2b3578',
    950: '#000000',
  },
}

SCSS

$custom: #2b3578;
$custom-light: #6d6c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3578",
  "rgb": {
    "r": 43,
    "g": 53,
    "b": 120
  },
  "hsl": {
    "h": 232.208,
    "s": 47.239,
    "l": 31.961
  },
  "oklch": {
    "l": 0.36057,
    "c": 0.1141,
    "h": 272.9
  },
  "luminance": 0.04416
}

Semantic roles & 50–950 ramp

primary

#2B3578

secondary

#AA9F55

accent

#C551D7

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#08060F

muted

#7B7A7E

Preview Lab

Preview with #2B3578

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

Preview Lab → · Contrast checker → · Palette generator →