#211B8C#211B8C

#211B8C is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.9% C 0.175 H 273.3°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#211B8C
RGB	rgb(33, 27, 140)
HSL	hsl(243, 68%, 33%)
HSV	hsv(243, 81%, 55%)
CMYK	cmyk(76.4%, 80.7%, 0%, 45.1%)
CIE-LAB	lab(20.04, 40.93, -60.46)
CIE-LCH	lch(20.04, 73.01, 304.10°)
OKLab	oklab(32.86% 0.0102 -0.1749)
OKLCH	oklch(32.86% 0.175 273.3)
XYZ	xyz(5.7512, 3.0001, 25.0818)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211B8C #868C1B

analogous

#1B4D8C #211B8C #5A1B8C

triadic

#211B8C #8C211B #1B8C21

tetradic

#211B8C #8C1B4D #868C1B #1B8C5A

square

#211B8C #8C1B4D #868C1B #1B8C5A

split-complementary

#211B8C #8C5A1B #4D8C1B

monochromatic

#090725 #151159 #211B8C #2D25BF #4E46DB

Accessibility & contrast

On white

13.12

#211B8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#211B8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211B8C

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211B8C	#FFFFFF	#000000	##FFFFFF
##211B8C	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368F

Deuteranopia (green-blind)

#002B8A

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #211b8c;
/* rgb */ color: rgb(33, 27, 140);
/* oklch */ color: oklch(32.9% 0.175 273.3);

Tailwind

colors: {
  custom: {
    50: '#705aaf',
    500: '#211b8c',
    950: '#000000',
  },
}

SCSS

$custom: #211b8c;
$custom-light: #705aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#211b8c",
  "rgb": {
    "r": 33,
    "g": 27,
    "b": 140
  },
  "hsl": {
    "h": 243.186,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.32859,
    "c": 0.17522,
    "h": 273.3
  },
  "luminance": 0.03001
}

Semantic roles & 50–950 ramp

primary

#211B8C

secondary

#B7BD46

accent

#EB3DE1

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090411

muted

#7B7980

Preview Lab

Preview with #211B8C

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

Preview Lab → · Contrast checker → · Palette generator →