#2B389B#2B389B

#2B389B is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.7% C 0.160 H 271.2°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#2B389B
RGB	rgb(43, 56, 155)
HSL	hsl(233, 57%, 39%)
HSV	hsv(233, 72%, 61%)
CMYK	cmyk(72.3%, 63.9%, 0%, 39.2%)
CIE-LAB	lab(28.66, 29.54, -55.50)
CIE-LCH	lch(28.66, 62.87, 298.02°)
OKLab	oklab(39.68% 0.0034 -0.1603)
OKLCH	oklch(39.68% 0.16 271.2)
XYZ	xyz(8.3248, 5.7077, 31.6670)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B389B #9B8E2B

analogous

#2B709B #2B389B #562B9B

triadic

#2B389B #9B2B38 #389B2B

tetradic

#2B389B #9B2B70 #9B8E2B #2B9B56

square

#2B389B #9B2B70 #9B8E2B #2B9B56

split-complementary

#2B389B #9B562B #709B2B

monochromatic

#10153B #1E276B #2B389B #3B4BC9 #6B77D6

Accessibility & contrast

On white

9.81

#2B389B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#2B389B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B389B

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B389B	#FFFFFF	#000000	##FFFFFF
##2B389B	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499E

Deuteranopia (green-blind)

#003E99

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b389b;
/* rgb */ color: rgb(43, 56, 155);
/* oklch */ color: oklch(39.7% 0.160 271.2);

Tailwind

colors: {
  custom: {
    50: '#756eb9',
    500: '#2b389b',
    950: '#000000',
  },
}

SCSS

$custom: #2b389b;
$custom-light: #756eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b389b",
  "rgb": {
    "r": 43,
    "g": 56,
    "b": 155
  },
  "hsl": {
    "h": 233.036,
    "s": 56.566,
    "l": 38.824
  },
  "oklch": {
    "l": 0.39676,
    "c": 0.16033,
    "h": 271.2
  },
  "luminance": 0.05708
}

Semantic roles & 50–950 ramp

primary

#2B389B

secondary

#BCB265

accent

#CE48E0

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #2B389B

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

Preview Lab → · Contrast checker → · Palette generator →