#211F9B#211F9B

#211F9B is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.1% C 0.190 H 271.6°. Best body text is #FFFFFF at 12.11:1 contrast (WCAG AA passes).

Color values

HEX	#211F9B
RGB	rgb(33, 31, 155)
HSL	hsl(241, 67%, 36%)
HSV	hsv(241, 80%, 61%)
CMYK	cmyk(78.7%, 80%, 0%, 39.2%)
CIE-LAB	lab(22.55, 43.75, -65.60)
CIE-LCH	lch(22.55, 78.85, 303.70°)
OKLab	oklab(35.12% 0.0053 -0.1899)
OKLCH	oklch(35.12% 0.19 271.6)
XYZ	xyz(7.0316, 3.6691, 31.3416)
Luminance	0.0367 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211F9B #999B1F

analogous

#1F5B9B #211F9B #5F1F9B

triadic

#211F9B #9B211F #1F9B21

tetradic

#211F9B #9B1F5B #999B1F #1F9B5F

square

#211F9B #9B1F5B #999B1F #1F9B5F

split-complementary

#211F9B #9B5F1F #5B9B1F

monochromatic

#0B0B35 #161568 #211F9B #2C29CE #5957DD

Accessibility & contrast

On white

12.11

#211F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#211F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211F9B

12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211F9B	#FFFFFF	#000000	##FFFFFF
##211F9B	1.00	12.11	1.73	12.11
#FFFFFF	12.11	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9E

Deuteranopia (green-blind)

#003099

Tritanopia (blue-blind)

#00455D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #211f9b;
/* rgb */ color: rgb(33, 31, 155);
/* oklch */ color: oklch(35.1% 0.190 271.6);

Tailwind

colors: {
  custom: {
    50: '#735dba',
    500: '#211f9b',
    950: '#000000',
  },
}

SCSS

$custom: #211f9b;
$custom-light: #735dba;
$custom-dark: #000000;

JSON

{
  "hex": "#211f9b",
  "rgb": {
    "r": 33,
    "g": 31,
    "b": 155
  },
  "hsl": {
    "h": 240.968,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.35124,
    "c": 0.18996,
    "h": 271.6
  },
  "luminance": 0.0367
}

Semantic roles & 50–950 ramp

primary

#211F9B

secondary

#BFC155

accent

#EA3EE7

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #211F9B

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

Preview Lab → · Contrast checker → · Palette generator →