#2B3A8B#2B3A8B

#2B3A8B is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.7% C 0.135 H 270.8°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#2B3A8B
RGB	rgb(43, 58, 139)
HSL	hsl(231, 53%, 36%)
HSV	hsv(231, 69%, 55%)
CMYK	cmyk(69.1%, 58.3%, 0%, 45.5%)
CIE-LAB	lab(27.85, 22.22, -47.00)
CIE-LCH	lch(27.85, 51.99, 295.31°)
OKLab	oklab(38.66% 0.0019 -0.1353)
OKLCH	oklch(38.66% 0.135 270.8)
XYZ	xyz(7.1679, 5.4031, 25.0862)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3A8B #8B7C2B

analogous

#2B6A8B #2B3A8B #4C2B8B

triadic

#2B3A8B #8B2B3A #3A8B2B

tetradic

#2B3A8B #8B2B6A #8B7C2B #2B8B4C

square

#2B3A8B #8B2B6A #8B7C2B #2B8B4C

split-complementary

#2B3A8B #8B4C2B #6A8B2B

monochromatic

#0E132E #1D265C #2B3A8B #394EBA #6273CE

Accessibility & contrast

On white

10.09

#2B3A8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2B3A8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3A8B

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3A8B	#FFFFFF	#000000	##FFFFFF
##2B3A8B	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468E

Deuteranopia (green-blind)

#003E89

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2b3a8b;
/* rgb */ color: rgb(43, 58, 139);
/* oklch */ color: oklch(38.7% 0.135 270.8);

Tailwind

colors: {
  custom: {
    50: '#716fae',
    500: '#2b3a8b',
    950: '#000000',
  },
}

SCSS

$custom: #2b3a8b;
$custom-light: #716fae;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3a8b",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 139
  },
  "hsl": {
    "h": 230.625,
    "s": 52.747,
    "l": 35.686
  },
  "oklch": {
    "l": 0.3866,
    "c": 0.1353,
    "h": 270.8
  },
  "luminance": 0.05404
}

Semantic roles & 50–950 ramp

primary

#2B3A8B

secondary

#B5A75D

accent

#C64CDC

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2B3A8B

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

Preview Lab → · Contrast checker → · Palette generator →