#211B8E#211B8E

#211B8E is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.1% C 0.178 H 273.1°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#211B8E
RGB	rgb(33, 27, 142)
HSL	hsl(243, 68%, 33%)
HSV	hsv(243, 81%, 56%)
CMYK	cmyk(76.8%, 81%, 0%, 44.3%)
CIE-LAB	lab(20.28, 41.59, -61.31)
CIE-LCH	lch(20.28, 74.09, 304.15°)
OKLab	oklab(33.09% 0.0097 -0.1774)
OKLCH	oklch(33.09% 0.178 273.1)
XYZ	xyz(5.9000, 3.0596, 25.8656)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211B8E #888E1B

analogous

#1B4F8E #211B8E #5A1B8E

triadic

#211B8E #8E211B #1B8E21

tetradic

#211B8E #8E1B4F #888E1B #1B8E5A

square

#211B8E #8E1B4F #888E1B #1B8E5A

split-complementary

#211B8E #8E5A1B #4F8E1B

monochromatic

#090727 #15115B #211B8E #2D25C1 #4F47DC

Accessibility & contrast

On white

13.03

#211B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#211B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211B8E

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211B8E	#FFFFFF	#000000	##FFFFFF
##211B8E	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003691

Deuteranopia (green-blind)

#002B8C

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #211b8e;
/* rgb */ color: rgb(33, 27, 142);
/* oklch */ color: oklch(33.1% 0.178 273.1);

Tailwind

colors: {
  custom: {
    50: '#705ab0',
    500: '#211b8e',
    950: '#000000',
  },
}

SCSS

$custom: #211b8e;
$custom-light: #705ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#211b8e",
  "rgb": {
    "r": 33,
    "g": 27,
    "b": 142
  },
  "hsl": {
    "h": 243.13,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33093,
    "c": 0.17766,
    "h": 273.1
  },
  "luminance": 0.0306
}

Semantic roles & 50–950 ramp

primary

#211B8E

secondary

#B8BE47

accent

#EB3DE2

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #211B8E

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

Preview Lab → · Contrast checker → · Palette generator →