#2B4F8F#2B4F8F

#2B4F8F is a dark, moderate blue. Relative luminance 0.081; OKLCH L 43.5% C 0.114 H 261.0°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#2B4F8F
RGB	rgb(43, 79, 143)
HSL	hsl(218, 54%, 36%)
HSV	hsv(218, 70%, 56%)
CMYK	cmyk(69.9%, 44.8%, 0%, 43.9%)
CIE-LAB	lab(34.17, 9.52, -39.29)
CIE-LCH	lch(34.17, 40.42, 283.63°)
OKLab	oklab(43.55% -0.0178 -0.1123)
OKLCH	oklch(43.55% 0.114 261)
XYZ	xyz(8.7484, 8.0878, 27.0813)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4F8F #8F6B2B

analogous

#2B818F #2B4F8F #392B8F

triadic

#2B4F8F #8F2B4F #4F8F2B

tetradic

#2B4F8F #8F2B81 #8F6B2B #2B8F39

square

#2B4F8F #8F2B81 #8F6B2B #2B8F39

split-complementary

#2B4F8F #8F392B #818F2B

monochromatic

#0F1B31 #1D3560 #2B4F8F #3969BE #648BD0

Accessibility & contrast

On white

8.02

#2B4F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#2B4F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4F8F

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4F8F	#FFFFFF	#000000	##FFFFFF
##2B4F8F	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305591

Deuteranopia (green-blind)

#1F4C8E

Tritanopia (blue-blind)

#005E68

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2b4f8f;
/* rgb */ color: rgb(43, 79, 143);
/* oklch */ color: oklch(43.5% 0.114 261.0);

Tailwind

colors: {
  custom: {
    50: '#707fb0',
    500: '#2b4f8f',
    950: '#000000',
  },
}

SCSS

$custom: #2b4f8f;
$custom-light: #707fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4f8f",
  "rgb": {
    "r": 43,
    "g": 79,
    "b": 143
  },
  "hsl": {
    "h": 218.4,
    "s": 53.763,
    "l": 36.471
  },
  "oklch": {
    "l": 0.43547,
    "c": 0.11368,
    "h": 261
  },
  "luminance": 0.08089
}

Semantic roles & 50–950 ramp

primary

#2B4F8F

secondary

#B7975F

accent

#A84BDD

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #2B4F8F

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

Preview Lab → · Contrast checker → · Palette generator →