#2B3899#2B3899

#2B3899 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.5% C 0.158 H 271.3°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#2B3899
RGB	rgb(43, 56, 153)
HSL	hsl(233, 56%, 38%)
HSV	hsv(233, 72%, 60%)
CMYK	cmyk(71.9%, 63.4%, 0%, 40%)
CIE-LAB	lab(28.49, 28.80, -54.57)
CIE-LCH	lch(28.49, 61.70, 297.82°)
OKLab	oklab(39.49% 0.0034 -0.1575)
OKLCH	oklch(39.49% 0.158 271.3)
XYZ	xyz(8.1583, 5.6410, 30.7897)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3899 #998C2B

analogous

#2B6F99 #2B3899 #552B99

triadic

#2B3899 #992B38 #38992B

tetradic

#2B3899 #992B6F #998C2B #2B9955

square

#2B3899 #992B6F #998C2B #2B9955

split-complementary

#2B3899 #99552B #6F992B

monochromatic

#101539 #1E2769 #2B3899 #3A4AC8 #6976D5

Accessibility & contrast

On white

9.87

#2B3899 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2B3899 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3899

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3899	#FFFFFF	#000000	##FFFFFF
##2B3899	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489C

Deuteranopia (green-blind)

#003E97

Tritanopia (blue-blind)

#005163

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2b3899;
/* rgb */ color: rgb(43, 56, 153);
/* oklch */ color: oklch(39.5% 0.158 271.3);

Tailwind

colors: {
  custom: {
    50: '#746eb8',
    500: '#2b3899',
    950: '#000000',
  },
}

SCSS

$custom: #2b3899;
$custom-light: #746eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3899",
  "rgb": {
    "r": 43,
    "g": 56,
    "b": 153
  },
  "hsl": {
    "h": 232.909,
    "s": 56.122,
    "l": 38.431
  },
  "oklch": {
    "l": 0.39494,
    "c": 0.15759,
    "h": 271.3
  },
  "luminance": 0.05642
}

Semantic roles & 50–950 ramp

primary

#2B3899

secondary

#BCB164

accent

#CE48DF

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2B3899

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

Preview Lab → · Contrast checker → · Palette generator →