#211DB3#211DB3

#211DB3 is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.8% C 0.220 H 270.1°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#211DB3
RGB	rgb(33, 29, 179)
HSL	hsl(242, 72%, 41%)
HSV	hsv(242, 84%, 70%)
CMYK	cmyk(81.6%, 83.8%, 0%, 29.8%)
CIE-LAB	lab(25.12, 52.32, -75.85)
CIE-LCH	lch(25.12, 92.14, 304.60°)
OKLab	oklab(37.75% 0.0005 -0.2195)
OKLCH	oklch(37.75% 0.22 270.1)
XYZ	xyz(9.2005, 4.4557, 43.0142)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211DB3 #AFB31D

analogous

#1D64B3 #211DB3 #6C1DB3

triadic

#211DB3 #B3211D #1DB321

tetradic

#211DB3 #B31D64 #AFB31D #1DB36C

square

#211DB3 #B31D64 #AFB31D #1DB36C

split-complementary

#211DB3 #B36C1D #64B31D

monochromatic

#0E0C4A #17147E #211DB3 #3430DD #6864E6

Accessibility & contrast

On white

11.10

#211DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#211DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211DB3

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211DB3	#FFFFFF	#000000	##FFFFFF
##211DB3	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B7

Deuteranopia (green-blind)

#0034B1

Tritanopia (blue-blind)

#004E6A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #211db3;
/* rgb */ color: rgb(33, 29, 179);
/* oklch */ color: oklch(37.8% 0.220 270.1);

Tailwind

colors: {
  custom: {
    50: '#7a5ecb',
    500: '#211db3',
    950: '#000000',
  },
}

SCSS

$custom: #211db3;
$custom-light: #7a5ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#211db3",
  "rgb": {
    "r": 33,
    "g": 29,
    "b": 179
  },
  "hsl": {
    "h": 241.6,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.37752,
    "c": 0.21952,
    "h": 270.1
  },
  "luminance": 0.04457
}

Semantic roles & 50–950 ramp

primary

#211DB3

secondary

#C8CB61

accent

#EF39EA

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0514

muted

#7C7982

Preview Lab

Preview with #211DB3

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

Preview Lab → · Contrast checker → · Palette generator →