#2B4B91#2B4B91

#2B4B91 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 42.8% C 0.122 H 263.6°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#2B4B91
RGB	rgb(43, 75, 145)
HSL	hsl(221, 54%, 37%)
HSV	hsv(221, 70%, 57%)
CMYK	cmyk(70.3%, 48.3%, 0%, 43.1%)
CIE-LAB	lab(33.11, 12.96, -42.19)
CIE-LCH	lch(33.11, 44.14, 287.08°)
OKLab	oklab(42.78% -0.0135 -0.1209)
OKLCH	oklch(42.78% 0.122 263.6)
XYZ	xyz(8.6214, 7.5892, 27.7931)
Luminance	0.0759 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4B91 #91712B

analogous

#2B7E91 #2B4B91 #3E2B91

triadic

#2B4B91 #912B4B #4B912B

tetradic

#2B4B91 #912B7E #91712B #2B913E

square

#2B4B91 #912B7E #91712B #2B913E

split-complementary

#2B4B91 #913E2B #7E912B

monochromatic

#0F1A33 #1D3362 #2B4B91 #3963C0 #6587D1

Accessibility & contrast

On white

8.34

#2B4B91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#2B4B91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4B91

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4B91	#FFFFFF	#000000	##FFFFFF
##2B4B91	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265394

Deuteranopia (green-blind)

#0F4990

Tritanopia (blue-blind)

#005B67

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2b4b91;
/* rgb */ color: rgb(43, 75, 145);
/* oklch */ color: oklch(42.8% 0.122 263.6);

Tailwind

colors: {
  custom: {
    50: '#717cb2',
    500: '#2b4b91',
    950: '#000000',
  },
}

SCSS

$custom: #2b4b91;
$custom-light: #717cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4b91",
  "rgb": {
    "r": 43,
    "g": 75,
    "b": 145
  },
  "hsl": {
    "h": 221.176,
    "s": 54.255,
    "l": 36.863
  },
  "oklch": {
    "l": 0.4278,
    "c": 0.12164,
    "h": 263.6
  },
  "luminance": 0.0759
}

Semantic roles & 50–950 ramp

primary

#2B4B91

secondary

#B89C60

accent

#AF4ADE

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #2B4B91

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

Preview Lab → · Contrast checker → · Palette generator →