#2B21AA#2B21AA

#2B21AA is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.7% C 0.203 H 273.8°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#2B21AA
RGB	rgb(43, 33, 170)
HSL	hsl(244, 67%, 40%)
HSV	hsv(244, 81%, 67%)
CMYK	cmyk(74.7%, 80.6%, 0%, 33.3%)
CIE-LAB	lab(25.27, 48.26, -70.19)
CIE-LCH	lch(25.27, 85.18, 304.51°)
OKLab	oklab(37.7% 0.0135 -0.203)
OKLCH	oklch(37.7% 0.203 273.8)
XYZ	xyz(8.7934, 4.5027, 38.4281)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B21AA #A0AA21

analogous

#215BAA #2B21AA #7021AA

triadic

#2B21AA #AA2B21 #21AA2B

tetradic

#2B21AA #AA215B #A0AA21 #21AA70

square

#2B21AA #AA215B #A0AA21 #21AA70

split-complementary

#2B21AA #AA7021 #5BAA21

monochromatic

#110D43 #1E1777 #2B21AA #3D31D7 #6E64E1

Accessibility & contrast

On white

11.05

#2B21AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#2B21AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B21AA

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B21AA	#FFFFFF	#000000	##FFFFFF
##2B21AA	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AE

Deuteranopia (green-blind)

#0035A8

Tritanopia (blue-blind)

#004C66

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2b21aa;
/* rgb */ color: rgb(43, 33, 170);
/* oklch */ color: oklch(37.7% 0.203 273.8);

Tailwind

colors: {
  custom: {
    50: '#7a60c5',
    500: '#2b21aa',
    950: '#000000',
  },
}

SCSS

$custom: #2b21aa;
$custom-light: #7a60c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b21aa",
  "rgb": {
    "r": 43,
    "g": 33,
    "b": 170
  },
  "hsl": {
    "h": 244.38,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37698,
    "c": 0.20347,
    "h": 273.8
  },
  "luminance": 0.04504
}

Semantic roles & 50–950 ramp

primary

#2B21AA

secondary

#BFC661

accent

#EA3DDE

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2B21AA

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

Preview Lab → · Contrast checker → · Palette generator →