#2B399A#2B399A

#2B399A is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.8% C 0.158 H 271.0°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#2B399A
RGB	rgb(43, 57, 154)
HSL	hsl(232, 56%, 39%)
HSV	hsv(232, 72%, 60%)
CMYK	cmyk(72.1%, 63%, 0%, 39.6%)
CIE-LAB	lab(28.83, 28.51, -54.62)
CIE-LCH	lch(28.83, 61.61, 297.56°)
OKLab	oklab(39.77% 0.0027 -0.1577)
OKLCH	oklch(39.77% 0.158 271)
XYZ	xyz(8.2901, 5.7721, 31.2428)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B399A #9A8C2B

analogous

#2B709A #2B399A #542B9A

triadic

#2B399A #9A2B39 #399A2B

tetradic

#2B399A #9A2B70 #9A8C2B #2B9A54

square

#2B399A #9A2B70 #9A8C2B #2B9A54

split-complementary

#2B399A #9A542B #709A2B

monochromatic

#10163A #1E276A #2B399A #3A4CC8 #6A78D5

Accessibility & contrast

On white

9.75

#2B399A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2B399A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B399A

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B399A	#FFFFFF	#000000	##FFFFFF
##2B399A	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499D

Deuteranopia (green-blind)

#003F98

Tritanopia (blue-blind)

#005264

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b399a;
/* rgb */ color: rgb(43, 57, 154);
/* oklch */ color: oklch(39.8% 0.158 271.0);

Tailwind

colors: {
  custom: {
    50: '#746fb9',
    500: '#2b399a',
    950: '#000000',
  },
}

SCSS

$custom: #2b399a;
$custom-light: #746fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b399a",
  "rgb": {
    "r": 43,
    "g": 57,
    "b": 154
  },
  "hsl": {
    "h": 232.432,
    "s": 56.345,
    "l": 38.627
  },
  "oklch": {
    "l": 0.39773,
    "c": 0.15771,
    "h": 271
  },
  "luminance": 0.05773
}

Semantic roles & 50–950 ramp

primary

#2B399A

secondary

#BCB165

accent

#CD48E0

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2B399A

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

Preview Lab → · Contrast checker → · Palette generator →