#2B4178#2B4178

#2B4178 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.7% C 0.097 H 265.7°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#2B4178
RGB	rgb(43, 65, 120)
HSL	hsl(223, 47%, 32%)
HSV	hsv(223, 64%, 47%)
CMYK	cmyk(64.2%, 45.8%, 0%, 52.9%)
CIE-LAB	lab(28.51, 10.23, -34.08)
CIE-LCH	lch(28.51, 35.58, 286.71°)
OKLab	oklab(38.73% -0.0074 -0.0972)
OKLCH	oklch(38.73% 0.097 265.7)
XYZ	xyz(6.2756, 5.6497, 18.5254)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4178 #78622B

analogous

#2B6878 #2B4178 #3C2B78

triadic

#2B4178 #782B41 #41782B

tetradic

#2B4178 #782B68 #78622B #2B783C

square

#2B4178 #782B68 #78622B #2B783C

split-complementary

#2B4178 #783C2B #68782B

monochromatic

#0B101E #1B294B #2B4178 #3B59A5 #5A78C4

Accessibility & contrast

On white

9.86

#2B4178 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2B4178 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4178

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4178	#FFFFFF	#000000	##FFFFFF
##2B4178	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28477A

Deuteranopia (green-blind)

#1C4077

Tritanopia (blue-blind)

#004D56

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2b4178;
/* rgb */ color: rgb(43, 65, 120);
/* oklch */ color: oklch(38.7% 0.097 265.7);

Tailwind

colors: {
  custom: {
    50: '#6c759f',
    500: '#2b4178',
    950: '#000000',
  },
}

SCSS

$custom: #2b4178;
$custom-light: #6c759f;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4178",
  "rgb": {
    "r": 43,
    "g": 65,
    "b": 120
  },
  "hsl": {
    "h": 222.857,
    "s": 47.239,
    "l": 31.961
  },
  "oklch": {
    "l": 0.38725,
    "c": 0.09747,
    "h": 265.7
  },
  "luminance": 0.0565
}

Semantic roles & 50–950 ramp

primary

#2B4178

secondary

#AA9155

accent

#B151D7

background

#F6F7F9

surface

#ECEDF2

border

#C7C8CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #2B4178

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

Preview Lab → · Contrast checker → · Palette generator →