#2B3999#2B3999

#2B3999 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.7% C 0.156 H 271.0°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#2B3999
RGB	rgb(43, 57, 153)
HSL	hsl(232, 56%, 38%)
HSV	hsv(232, 72%, 60%)
CMYK	cmyk(71.9%, 62.7%, 0%, 40%)
CIE-LAB	lab(28.74, 28.14, -54.15)
CIE-LCH	lch(28.74, 61.03, 297.46°)
OKLab	oklab(39.68% 0.0027 -0.1563)
OKLCH	oklch(39.68% 0.156 271)
XYZ	xyz(8.2072, 5.7389, 30.8060)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3999 #998B2B

analogous

#2B7099 #2B3999 #542B99

triadic

#2B3999 #992B39 #39992B

tetradic

#2B3999 #992B70 #998B2B #2B9954

square

#2B3999 #992B70 #998B2B #2B9954

split-complementary

#2B3999 #99542B #70992B

monochromatic

#101539 #1E2769 #2B3999 #3A4CC8 #6977D5

Accessibility & contrast

On white

9.78

#2B3999 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2B3999 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3999

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3999	#FFFFFF	#000000	##FFFFFF
##2B3999	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499C

Deuteranopia (green-blind)

#003F97

Tritanopia (blue-blind)

#005163

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b3999;
/* rgb */ color: rgb(43, 57, 153);
/* oklch */ color: oklch(39.7% 0.156 271.0);

Tailwind

colors: {
  custom: {
    50: '#746fb8',
    500: '#2b3999',
    950: '#000000',
  },
}

SCSS

$custom: #2b3999;
$custom-light: #746fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3999",
  "rgb": {
    "r": 43,
    "g": 57,
    "b": 153
  },
  "hsl": {
    "h": 232.364,
    "s": 56.122,
    "l": 38.431
  },
  "oklch": {
    "l": 0.39682,
    "c": 0.15633,
    "h": 271
  },
  "luminance": 0.0574
}

Semantic roles & 50–950 ramp

primary

#2B3999

secondary

#BCB064

accent

#CC48DF

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2B3999

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

Preview Lab → · Contrast checker → · Palette generator →