#211DB4#211DB4

#211DB4 is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.9% C 0.221 H 270.1°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#211DB4
RGB	rgb(33, 29, 180)
HSL	hsl(242, 72%, 41%)
HSV	hsv(242, 84%, 71%)
CMYK	cmyk(81.7%, 83.9%, 0%, 29.4%)
CIE-LAB	lab(25.25, 52.62, -76.24)
CIE-LCH	lch(25.25, 92.64, 304.61°)
OKLab	oklab(37.87% 0.0003 -0.2206)
OKLCH	oklch(37.87% 0.221 270.1)
XYZ	xyz(9.3020, 4.4963, 43.5488)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211DB4 #B0B41D

analogous

#1D65B4 #211DB4 #6C1DB4

triadic

#211DB4 #B4211D #1DB421

tetradic

#211DB4 #B41D65 #B0B41D #1DB46C

square

#211DB4 #B41D65 #B0B41D #1DB46C

split-complementary

#211DB4 #B46C1D #65B41D

monochromatic

#0E0C4B #17157F #211DB4 #3530DE #6965E6

Accessibility & contrast

On white

11.06

#211DB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#211DB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211DB4

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211DB4	#FFFFFF	#000000	##FFFFFF
##211DB4	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B8

Deuteranopia (green-blind)

#0034B2

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #211db4;
/* rgb */ color: rgb(33, 29, 180);
/* oklch */ color: oklch(37.9% 0.221 270.1);

Tailwind

colors: {
  custom: {
    50: '#7a5ecc',
    500: '#211db4',
    950: '#000000',
  },
}

SCSS

$custom: #211db4;
$custom-light: #7a5ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#211db4",
  "rgb": {
    "r": 33,
    "g": 29,
    "b": 180
  },
  "hsl": {
    "h": 241.589,
    "s": 72.249,
    "l": 40.98
  },
  "oklch": {
    "l": 0.37873,
    "c": 0.22065,
    "h": 270.1
  },
  "luminance": 0.04497
}

Semantic roles & 50–950 ramp

primary

#211DB4

secondary

#C8CB61

accent

#EF39EA

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0514

muted

#7C7982

Preview Lab

Preview with #211DB4

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

Preview Lab → · Contrast checker → · Palette generator →