#2B3D8F#2B3D8F

#2B3D8F is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.6% C 0.137 H 269.7°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#2B3D8F
RGB	rgb(43, 61, 143)
HSL	hsl(229, 54%, 36%)
HSV	hsv(229, 70%, 56%)
CMYK	cmyk(69.9%, 57.3%, 0%, 43.9%)
CIE-LAB	lab(28.99, 21.69, -47.63)
CIE-LCH	lch(28.99, 52.33, 294.49°)
OKLab	oklab(39.61% -0.0007 -0.1371)
OKLCH	oklch(39.61% 0.137 269.7)
XYZ	xyz(7.6212, 5.8335, 26.7056)
Luminance	0.0583 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3D8F #8F7D2B

analogous

#2B6F8F #2B3D8F #4B2B8F

triadic

#2B3D8F #8F2B3D #3D8F2B

tetradic

#2B3D8F #8F2B6F #8F7D2B #2B8F4B

square

#2B3D8F #8F2B6F #8F7D2B #2B8F4B

split-complementary

#2B3D8F #8F4B2B #6F8F2B

monochromatic

#0F1531 #1D2960 #2B3D8F #3951BE #6478D0

Accessibility & contrast

On white

9.69

#2B3D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#2B3D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3D8F

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3D8F	#FFFFFF	#000000	##FFFFFF
##2B3D8F	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004992

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b3d8f;
/* rgb */ color: rgb(43, 61, 143);
/* oklch */ color: oklch(39.6% 0.137 269.7);

Tailwind

colors: {
  custom: {
    50: '#7172b0',
    500: '#2b3d8f',
    950: '#000000',
  },
}

SCSS

$custom: #2b3d8f;
$custom-light: #7172b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3d8f",
  "rgb": {
    "r": 43,
    "g": 61,
    "b": 143
  },
  "hsl": {
    "h": 229.2,
    "s": 53.763,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39608,
    "c": 0.13709,
    "h": 269.7
  },
  "luminance": 0.05834
}

Semantic roles & 50–950 ramp

primary

#2B3D8F

secondary

#B7A75F

accent

#C34BDD

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2B3D8F

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

Preview Lab → · Contrast checker → · Palette generator →