#2B389C#2B389C

#2B389C is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.8% C 0.162 H 271.2°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#2B389C
RGB	rgb(43, 56, 156)
HSL	hsl(233, 57%, 39%)
HSV	hsv(233, 72%, 61%)
CMYK	cmyk(72.4%, 64.1%, 0%, 38.8%)
CIE-LAB	lab(28.75, 29.91, -55.97)
CIE-LCH	lch(28.75, 63.46, 298.12°)
OKLab	oklab(39.77% 0.0033 -0.1616)
OKLCH	oklch(39.77% 0.162 271.2)
XYZ	xyz(8.4091, 5.7414, 32.1111)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B389C #9C8F2B

analogous

#2B719C #2B389C #572B9C

triadic

#2B389C #9C2B38 #389C2B

tetradic

#2B389C #9C2B71 #9C8F2B #2B9C57

square

#2B389C #9C2B71 #9C8F2B #2B9C57

split-complementary

#2B389C #9C572B #719C2B

monochromatic

#11163C #1E276C #2B389C #3B4BC9 #6B77D6

Accessibility & contrast

On white

9.77

#2B389C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2B389C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B389C

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B389C	#FFFFFF	#000000	##FFFFFF
##2B389C	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499F

Deuteranopia (green-blind)

#003F9A

Tritanopia (blue-blind)

#005264

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b389c;
/* rgb */ color: rgb(43, 56, 156);
/* oklch */ color: oklch(39.8% 0.162 271.2);

Tailwind

colors: {
  custom: {
    50: '#756eba',
    500: '#2b389c',
    950: '#000000',
  },
}

SCSS

$custom: #2b389c;
$custom-light: #756eba;
$custom-dark: #000000;

JSON

{
  "hex": "#2b389c",
  "rgb": {
    "r": 43,
    "g": 56,
    "b": 156
  },
  "hsl": {
    "h": 233.097,
    "s": 56.784,
    "l": 39.02
  },
  "oklch": {
    "l": 0.39768,
    "c": 0.16168,
    "h": 271.2
  },
  "luminance": 0.05742
}

Semantic roles & 50–950 ramp

primary

#2B389C

secondary

#BDB366

accent

#CF48E0

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #2B389C

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

Preview Lab → · Contrast checker → · Palette generator →