#2B399E#2B399E

#2B399E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.1% C 0.163 H 270.9°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#2B399E
RGB	rgb(43, 57, 158)
HSL	hsl(233, 57%, 39%)
HSV	hsv(233, 73%, 62%)
CMYK	cmyk(72.8%, 63.9%, 0%, 38%)
CIE-LAB	lab(29.18, 29.99, -56.49)
CIE-LCH	lch(29.18, 63.95, 297.96°)
OKLab	oklab(40.14% 0.0025 -0.1632)
OKLCH	oklch(40.14% 0.163 270.9)
XYZ	xyz(8.6288, 5.9076, 33.0267)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B399E #9E902B

analogous

#2B739E #2B399E #572B9E

triadic

#2B399E #9E2B39 #399E2B

tetradic

#2B399E #9E2B73 #9E902B #2B9E57

square

#2B399E #9E2B73 #9E902B #2B9E57

split-complementary

#2B399E #9E572B #739E2B

monochromatic

#11163E #1E286E #2B399E #3C4DCA #6C79D7

Accessibility & contrast

On white

9.63

#2B399E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2B399E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B399E

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B399E	#FFFFFF	#000000	##FFFFFF
##2B399E	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA1

Deuteranopia (green-blind)

#00409C

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b399e;
/* rgb */ color: rgb(43, 57, 158);
/* oklch */ color: oklch(40.1% 0.163 270.9);

Tailwind

colors: {
  custom: {
    50: '#756fbc',
    500: '#2b399e',
    950: '#000000',
  },
}

SCSS

$custom: #2b399e;
$custom-light: #756fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b399e",
  "rgb": {
    "r": 43,
    "g": 57,
    "b": 158
  },
  "hsl": {
    "h": 232.696,
    "s": 57.214,
    "l": 39.412
  },
  "oklch": {
    "l": 0.40137,
    "c": 0.16318,
    "h": 270.9
  },
  "luminance": 0.05908
}

Semantic roles & 50–950 ramp

primary

#2B399E

secondary

#BEB367

accent

#CE47E0

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2B399E

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

Preview Lab → · Contrast checker → · Palette generator →