#2B4571#2B4571

#2B4571 is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.2% C 0.082 H 260.4°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#2B4571
RGB	rgb(43, 69, 113)
HSL	hsl(218, 45%, 31%)
HSV	hsv(218, 62%, 44%)
CMYK	cmyk(61.9%, 38.9%, 0%, 55.7%)
CIE-LAB	lab(29.32, 4.90, -28.39)
CIE-LCH	lch(29.32, 28.81, 279.80°)
OKLab	oklab(39.21% -0.0137 -0.0805)
OKLCH	oklch(39.21% 0.082 260.4)
XYZ	xyz(6.1040, 5.9616, 16.4486)
Luminance	0.0596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4571 #71572B

analogous

#2B6871 #2B4571 #342B71

triadic

#2B4571 #712B45 #45712B

tetradic

#2B4571 #712B68 #71572B #2B7134

square

#2B4571 #712B68 #71572B #2B7134

split-complementary

#2B4571 #71342B #68712B

monochromatic

#090F18 #1A2A45 #2B4571 #3C609D #577EBF

Accessibility & contrast

On white

9.58

#2B4571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2B4571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4571

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4571	#FFFFFF	#000000	##FFFFFF
##2B4571	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324973

Deuteranopia (green-blind)

#294270

Tritanopia (blue-blind)

#004F55

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b4571;
/* rgb */ color: rgb(43, 69, 113);
/* oklch */ color: oklch(39.2% 0.082 260.4);

Tailwind

colors: {
  custom: {
    50: '#6b789a',
    500: '#2b4571',
    950: '#000000',
  },
}

SCSS

$custom: #2b4571;
$custom-light: #6b789a;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4571",
  "rgb": {
    "r": 43,
    "g": 69,
    "b": 113
  },
  "hsl": {
    "h": 217.714,
    "s": 44.872,
    "l": 30.588
  },
  "oklch": {
    "l": 0.39209,
    "c": 0.08161,
    "h": 260.4
  },
  "luminance": 0.05962
}

Semantic roles & 50–950 ramp

primary

#2B4571

secondary

#A38655

accent

#A553D5

background

#F6F7F9

surface

#ECEDF2

border

#C7C8CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #2B4571

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

Preview Lab → · Contrast checker → · Palette generator →