#2B389F#2B389F

#2B389F is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.0% C 0.166 H 271.1°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#2B389F
RGB	rgb(43, 56, 159)
HSL	hsl(233, 57%, 40%)
HSV	hsv(233, 73%, 62%)
CMYK	cmyk(73%, 64.8%, 0%, 37.6%)
CIE-LAB	lab(29.02, 31.01, -57.36)
CIE-LCH	lch(29.02, 65.20, 298.40°)
OKLab	oklab(40.04% 0.0032 -0.1657)
OKLCH	oklch(40.04% 0.166 271.1)
XYZ	xyz(8.6663, 5.8443, 33.4655)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B389F #9F922B

analogous

#2B729F #2B389F #582B9F

triadic

#2B389F #9F2B38 #389F2B

tetradic

#2B389F #9F2B72 #9F922B #2B9F58

square

#2B389F #9F2B72 #9F922B #2B9F58

split-complementary

#2B389F #9F582B #729F2B

monochromatic

#11163F #1E276F #2B389F #3D4DCA #6D79D7

Accessibility & contrast

On white

9.68

#2B389F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#2B389F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B389F

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B389F	#FFFFFF	#000000	##FFFFFF
##2B389F	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA2

Deuteranopia (green-blind)

#003F9D

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b389f;
/* rgb */ color: rgb(43, 56, 159);
/* oklch */ color: oklch(40.0% 0.166 271.1);

Tailwind

colors: {
  custom: {
    50: '#756ebc',
    500: '#2b389f',
    950: '#000000',
  },
}

SCSS

$custom: #2b389f;
$custom-light: #756ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b389f",
  "rgb": {
    "r": 43,
    "g": 56,
    "b": 159
  },
  "hsl": {
    "h": 233.276,
    "s": 57.426,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40045,
    "c": 0.16575,
    "h": 271.1
  },
  "luminance": 0.05845
}

Semantic roles & 50–950 ramp

primary

#2B389F

secondary

#BEB567

accent

#CF47E1

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2B389F

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

Preview Lab → · Contrast checker → · Palette generator →