#2F21A8#2F21A8

#2F21A8 is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.7% C 0.200 H 275.5°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#2F21A8
RGB	rgb(47, 33, 168)
HSL	hsl(246, 67%, 39%)
HSV	hsv(246, 80%, 66%)
CMYK	cmyk(72%, 80.4%, 0%, 34.1%)
CIE-LAB	lab(25.32, 47.95, -68.89)
CIE-LCH	lch(25.32, 83.94, 304.84°)
OKLab	oklab(37.74% 0.0194 -0.1992)
OKLCH	oklch(37.74% 0.2 275.5)
XYZ	xyz(8.7817, 4.5184, 37.4475)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F21A8 #9AA821

analogous

#2157A8 #2F21A8 #7321A8

triadic

#2F21A8 #A82F21 #21A82F

tetradic

#2F21A8 #A82157 #9AA821 #21A873

square

#2F21A8 #A82157 #9AA821 #21A873

split-complementary

#2F21A8 #A87321 #57A821

monochromatic

#120D42 #211775 #2F21A8 #4130D6 #7063E0

Accessibility & contrast

On white

11.03

#2F21A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#2F21A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F21A8

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F21A8	#FFFFFF	#000000	##FFFFFF
##2F21A8	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AC

Deuteranopia (green-blind)

#0036A6

Tritanopia (blue-blind)

#004B65

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2f21a8;
/* rgb */ color: rgb(47, 33, 168);
/* oklch */ color: oklch(37.7% 0.200 275.5);

Tailwind

colors: {
  custom: {
    50: '#7b60c3',
    500: '#2f21a8',
    950: '#000000',
  },
}

SCSS

$custom: #2f21a8;
$custom-light: #7b60c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f21a8",
  "rgb": {
    "r": 47,
    "g": 33,
    "b": 168
  },
  "hsl": {
    "h": 246.222,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.37737,
    "c": 0.20012,
    "h": 275.5
  },
  "luminance": 0.04519
}

Semantic roles & 50–950 ramp

primary

#2F21A8

secondary

#BBC55F

accent

#EA3ED8

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2F21A8

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

Preview Lab → · Contrast checker → · Palette generator →