#2121BE#2121BE

#2121BE is a dark, highly saturated blue. Relative luminance 0.051; OKLCH L 39.5% C 0.229 H 269.4°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#2121BE
RGB	rgb(33, 33, 190)
HSL	hsl(240, 70%, 44%)
HSV	hsv(240, 83%, 75%)
CMYK	cmyk(82.6%, 82.6%, 0%, 25.5%)
CIE-LAB	lab(27.09, 53.87, -79.11)
CIE-LCH	lch(27.09, 95.71, 304.25°)
OKLab	oklab(39.5% -0.0025 -0.229)
OKLCH	oklch(39.5% 0.229 269.4)
XYZ	xyz(10.4622, 5.1275, 49.1435)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2121BE #BEBE21

analogous

#216FBE #2121BE #6F21BE

triadic

#2121BE #BE2121 #21BE21

tetradic

#2121BE #BE216F #BEBE21 #21BE6F

square

#2121BE #BE216F #BEBE21 #21BE6F

split-complementary

#2121BE #BE6F21 #6FBE21

monochromatic

#0F0F56 #18188A #2121BE #3F3FDE #7373E7

Accessibility & contrast

On white

10.37

#2121BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#2121BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2121BE

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2121BE	#FFFFFF	#000000	##FFFFFF
##2121BE	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048C2

Deuteranopia (green-blind)

#0038BB

Tritanopia (blue-blind)

#005472

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2121be;
/* rgb */ color: rgb(33, 33, 190);
/* oklch */ color: oklch(39.5% 0.229 269.4);

Tailwind

colors: {
  custom: {
    50: '#7c61d3',
    500: '#2121be',
    950: '#000000',
  },
}

SCSS

$custom: #2121be;
$custom-light: #7c61d3;
$custom-dark: #000000;

JSON

{
  "hex": "#2121be",
  "rgb": {
    "r": 33,
    "g": 33,
    "b": 190
  },
  "hsl": {
    "h": 240,
    "s": 70.404,
    "l": 43.725
  },
  "oklch": {
    "l": 0.39502,
    "c": 0.22906,
    "h": 269.4
  },
  "luminance": 0.05129
}

Semantic roles & 50–950 ramp

primary

#2121BE

secondary

#CDCD6D

accent

#ED3BED

background

#F8F5FD

surface

#F0EAFA

border

#CBC6D3

text

#0C0514

muted

#7D7983

Preview Lab

Preview with #2121BE

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

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