#2B4E81#2B4E81

#2B4E81 is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.4% C 0.095 H 257.8°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#2B4E81
RGB	rgb(43, 78, 129)
HSL	hsl(216, 50%, 34%)
HSV	hsv(216, 67%, 51%)
CMYK	cmyk(66.7%, 39.5%, 0%, 49.4%)
CIE-LAB	lab(33.02, 4.88, -32.51)
CIE-LCH	lch(33.02, 32.88, 278.54°)
OKLab	oklab(42.39% -0.0199 -0.0924)
OKLCH	oklch(42.39% 0.095 257.8)
XYZ	xyz(7.6817, 7.5466, 21.8164)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4E81 #815E2B

analogous

#2B7981 #2B4E81 #332B81

triadic

#2B4E81 #812B4E #4E812B

tetradic

#2B4E81 #812B79 #815E2B #2B8133

square

#2B4E81 #812B79 #815E2B #2B8133

split-complementary

#2B4E81 #81332B #79812B

monochromatic

#0C1625 #1C3253 #2B4E81 #3A6AAF #5D89C9

Accessibility & contrast

On white

8.37

#2B4E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#2B4E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4E81

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4E81	#FFFFFF	#000000	##FFFFFF
##2B4E81	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385283

Deuteranopia (green-blind)

#2B4A80

Tritanopia (blue-blind)

#005A61

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2b4e81;
/* rgb */ color: rgb(43, 78, 129);
/* oklch */ color: oklch(42.4% 0.095 257.8);

Tailwind

colors: {
  custom: {
    50: '#6e7fa6',
    500: '#2b4e81',
    950: '#000000',
  },
}

SCSS

$custom: #2b4e81;
$custom-light: #6e7fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4e81",
  "rgb": {
    "r": 43,
    "g": 78,
    "b": 129
  },
  "hsl": {
    "h": 215.581,
    "s": 50,
    "l": 33.725
  },
  "oklch": {
    "l": 0.42387,
    "c": 0.09455,
    "h": 257.8
  },
  "luminance": 0.07547
}

Semantic roles & 50–950 ramp

primary

#2B4E81

secondary

#AF8C59

accent

#A14EDA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A0F

muted

#7B7C7F

Preview Lab

Preview with #2B4E81

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

Preview Lab → · Contrast checker → · Palette generator →