#211D78#211D78

#211D78 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.9% C 0.148 H 275.3°. Best body text is #FFFFFF at 13.89:1 contrast (WCAG AA passes).

Color values

HEX	#211D78
RGB	rgb(33, 29, 120)
HSL	hsl(243, 61%, 29%)
HSV	hsv(243, 76%, 47%)
CMYK	cmyk(72.5%, 75.8%, 0%, 52.9%)
CIE-LAB	lab(18.18, 32.97, -50.89)
CIE-LCH	lch(18.18, 60.63, 302.94°)
OKLab	oklab(30.87% 0.0137 -0.1471)
OKLCH	oklch(30.87% 0.148 275.3)
XYZ	xyz(4.4556, 2.5577, 18.0245)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211D78 #74781D

analogous

#1D4778 #211D78 #4F1D78

triadic

#211D78 #78211D #1D7821

tetradic

#211D78 #781D47 #74781D #1D784F

square

#211D78 #781D47 #74781D #1D784F

split-complementary

#211D78 #784F1D #47781D

monochromatic

#070619 #131147 #211D78 #2F29A9 #453FD1

Accessibility & contrast

On white

13.89

#211D78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#211D78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211D78

13.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211D78	#FFFFFF	#000000	##FFFFFF
##211D78	1.00	13.89	1.51	13.89
#FFFFFF	13.89	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307B

Deuteranopia (green-blind)

#002876

Tritanopia (blue-blind)

#003748

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #211d78;
/* rgb */ color: rgb(33, 29, 120);
/* oklch */ color: oklch(30.9% 0.148 275.3);

Tailwind

colors: {
  custom: {
    50: '#6b5aa0',
    500: '#211d78',
    950: '#000000',
  },
}

SCSS

$custom: #211d78;
$custom-light: #6b5aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#211d78",
  "rgb": {
    "r": 33,
    "g": 29,
    "b": 120
  },
  "hsl": {
    "h": 242.637,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.30873,
    "c": 0.14774,
    "h": 275.3
  },
  "luminance": 0.02558
}

Semantic roles & 50–950 ramp

primary

#211D78

secondary

#A7AC45

accent

#E444DD

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#08040F

muted

#7A797F

Preview Lab

Preview with #211D78

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

Preview Lab → · Contrast checker → · Palette generator →