#2B4F8B#2B4F8B

#2B4F8B is a dark, moderate blue. Relative luminance 0.080; OKLCH L 43.3% C 0.108 H 260.0°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#2B4F8B
RGB	rgb(43, 79, 139)
HSL	hsl(218, 53%, 36%)
HSV	hsv(218, 69%, 55%)
CMYK	cmyk(69.1%, 43.2%, 0%, 45.5%)
CIE-LAB	lab(33.92, 8.00, -37.24)
CIE-LCH	lch(33.92, 38.09, 282.13°)
OKLab	oklab(43.28% -0.0187 -0.1062)
OKLCH	oklch(43.28% 0.108 260)
XYZ	xyz(8.4508, 7.9688, 25.5139)
Luminance	0.0797 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4F8B #8B672B

analogous

#2B7F8B #2B4F8B #372B8B

triadic

#2B4F8B #8B2B4F #4F8B2B

tetradic

#2B4F8B #8B2B7F #8B672B #2B8B37

square

#2B4F8B #8B2B7F #8B672B #2B8B37

split-complementary

#2B4F8B #8B372B #7F8B2B

monochromatic

#0E1A2E #1D345C #2B4F8B #396ABA #628BCE

Accessibility & contrast

On white

8.10

#2B4F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#2B4F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4F8B

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4F8B	#FFFFFF	#000000	##FFFFFF
##2B4F8B	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33558D

Deuteranopia (green-blind)

#244C8A

Tritanopia (blue-blind)

#005D66

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2b4f8b;
/* rgb */ color: rgb(43, 79, 139);
/* oklch */ color: oklch(43.3% 0.108 260.0);

Tailwind

colors: {
  custom: {
    50: '#707fad',
    500: '#2b4f8b',
    950: '#000000',
  },
}

SCSS

$custom: #2b4f8b;
$custom-light: #707fad;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4f8b",
  "rgb": {
    "r": 43,
    "g": 79,
    "b": 139
  },
  "hsl": {
    "h": 217.5,
    "s": 52.747,
    "l": 35.686
  },
  "oklch": {
    "l": 0.43276,
    "c": 0.10788,
    "h": 260
  },
  "luminance": 0.0797
}

Semantic roles & 50–950 ramp

primary

#2B4F8B

secondary

#B5945D

accent

#A64CDC

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #2B4F8B

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

Preview Lab → · Contrast checker → · Palette generator →