#2B4B78#2B4B78

#2B4B78 is a dark, moderate blue. Relative luminance 0.069; OKLCH L 41.1% C 0.085 H 257.1°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#2B4B78
RGB	rgb(43, 75, 120)
HSL	hsl(215, 47%, 32%)
HSV	hsv(215, 64%, 47%)
CMYK	cmyk(64.2%, 37.5%, 0%, 52.9%)
CIE-LAB	lab(31.58, 3.50, -29.20)
CIE-LCH	lch(31.58, 29.41, 276.84°)
OKLab	oklab(41.1% -0.0189 -0.0828)
OKLCH	oklch(41.1% 0.085 257.1)
XYZ	xyz(6.9013, 6.9012, 18.7340)
Luminance	0.0690 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4B78 #78582B

analogous

#2B7278 #2B4B78 #322B78

triadic

#2B4B78 #782B4B #4B782B

tetradic

#2B4B78 #782B72 #78582B #2B7832

square

#2B4B78 #782B72 #78582B #2B7832

split-complementary

#2B4B78 #78322B #72782B

monochromatic

#0B131E #1B2F4B #2B4B78 #3B67A5 #5A86C4

Accessibility & contrast

On white

8.82

#2B4B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#2B4B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4B78

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4B78	#FFFFFF	#000000	##FFFFFF
##2B4B78	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#384E7A

Deuteranopia (green-blind)

#2D4777

Tritanopia (blue-blind)

#00555C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2b4b78;
/* rgb */ color: rgb(43, 75, 120);
/* oklch */ color: oklch(41.1% 0.085 257.1);

Tailwind

colors: {
  custom: {
    50: '#6c7d9f',
    500: '#2b4b78',
    950: '#000000',
  },
}

SCSS

$custom: #2b4b78;
$custom-light: #6c7d9f;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4b78",
  "rgb": {
    "r": 43,
    "g": 75,
    "b": 120
  },
  "hsl": {
    "h": 215.065,
    "s": 47.239,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41101,
    "c": 0.0849,
    "h": 257.1
  },
  "luminance": 0.06902
}

Semantic roles & 50–950 ramp

primary

#2B4B78

secondary

#AA8755

accent

#9F51D7

background

#F6F7F9

surface

#ECEEF2

border

#C7C9CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #2B4B78

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

Preview Lab → · Contrast checker → · Palette generator →