#2B399F#2B399F

#2B399F is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.2% C 0.165 H 270.9°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#2B399F
RGB	rgb(43, 57, 159)
HSL	hsl(233, 57%, 40%)
HSV	hsv(233, 73%, 62%)
CMYK	cmyk(73%, 64.2%, 0%, 37.6%)
CIE-LAB	lab(29.27, 30.36, -56.95)
CIE-LCH	lch(29.27, 64.53, 298.06°)
OKLab	oklab(40.23% 0.0025 -0.1645)
OKLCH	oklch(40.23% 0.165 270.9)
XYZ	xyz(8.7153, 5.9422, 33.4818)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B399F #9F912B

analogous

#2B739F #2B399F #572B9F

triadic

#2B399F #9F2B39 #399F2B

tetradic

#2B399F #9F2B73 #9F912B #2B9F57

square

#2B399F #9F2B73 #9F912B #2B9F57

split-complementary

#2B399F #9F572B #739F2B

monochromatic

#11163F #1E286F #2B399F #3D4ECA #6D7AD7

Accessibility & contrast

On white

9.60

#2B399F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2B399F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B399F

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B399F	#FFFFFF	#000000	##FFFFFF
##2B399F	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA2

Deuteranopia (green-blind)

#00409D

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b399f;
/* rgb */ color: rgb(43, 57, 159);
/* oklch */ color: oklch(40.2% 0.165 270.9);

Tailwind

colors: {
  custom: {
    50: '#756fbc',
    500: '#2b399f',
    950: '#000000',
  },
}

SCSS

$custom: #2b399f;
$custom-light: #756fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b399f",
  "rgb": {
    "r": 43,
    "g": 57,
    "b": 159
  },
  "hsl": {
    "h": 232.759,
    "s": 57.426,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40229,
    "c": 0.16453,
    "h": 270.9
  },
  "luminance": 0.05943
}

Semantic roles & 50–950 ramp

primary

#2B399F

secondary

#BEB467

accent

#CE47E1

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2B399F

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

Preview Lab → · Contrast checker → · Palette generator →