#2F21A0#2F21A0

#2F21A0 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.8% C 0.191 H 276.5°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#2F21A0
RGB	rgb(47, 33, 160)
HSL	hsl(247, 66%, 38%)
HSV	hsv(247, 79%, 63%)
CMYK	cmyk(70.6%, 79.4%, 0%, 37.3%)
CIE-LAB	lab(24.42, 45.46, -65.53)
CIE-LCH	lch(24.42, 79.75, 304.75°)
OKLab	oklab(36.85% 0.0215 -0.1894)
OKLCH	oklch(36.85% 0.191 276.5)
XYZ	xyz(8.0592, 4.2294, 33.6425)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F21A0 #92A021

analogous

#2153A0 #2F21A0 #6E21A0

triadic

#2F21A0 #A02F21 #21A02F

tetradic

#2F21A0 #A02153 #92A021 #21A06E

square

#2F21A0 #A02153 #92A021 #21A06E

split-complementary

#2F21A0 #A06E21 #53A021

monochromatic

#110C3B #20176D #2F21A0 #3E2BD3 #6C5EDE

Accessibility & contrast

On white

11.38

#2F21A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#2F21A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F21A0

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F21A0	#FFFFFF	#000000	##FFFFFF
##2F21A0	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA4

Deuteranopia (green-blind)

#00349E

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2f21a0;
/* rgb */ color: rgb(47, 33, 160);
/* oklch */ color: oklch(36.8% 0.191 276.5);

Tailwind

colors: {
  custom: {
    50: '#7960bd',
    500: '#2f21a0',
    950: '#000000',
  },
}

SCSS

$custom: #2f21a0;
$custom-light: #7960bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2f21a0",
  "rgb": {
    "r": 47,
    "g": 33,
    "b": 160
  },
  "hsl": {
    "h": 246.614,
    "s": 65.803,
    "l": 37.843
  },
  "oklch": {
    "l": 0.36845,
    "c": 0.19061,
    "h": 276.5
  },
  "luminance": 0.0423
}

Semantic roles & 50–950 ramp

primary

#2F21A0

secondary

#B7C25B

accent

#E93FD6

background

#F8F5FB

surface

#EFEAF7

border

#CAC6D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #2F21A0

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

Preview Lab → · Contrast checker → · Palette generator →