#2F28A1#2F28A1

#2F28A1 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.9% C 0.185 H 275.5°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#2F28A1
RGB	rgb(47, 40, 161)
HSL	hsl(243, 60%, 39%)
HSV	hsv(243, 75%, 63%)
CMYK	cmyk(70.8%, 75.2%, 0%, 36.9%)
CIE-LAB	lab(25.85, 42.01, -63.77)
CIE-LCH	lch(25.85, 76.37, 303.37°)
OKLab	oklab(37.88% 0.0177 -0.1844)
OKLCH	oklch(37.88% 0.185 275.5)
XYZ	xyz(8.3620, 4.6943, 34.1767)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F28A1 #9AA128

analogous

#285EA1 #2F28A1 #6C28A1

triadic

#2F28A1 #A12F28 #28A12F

tetradic

#2F28A1 #A1285E #9AA128 #28A16C

square

#2F28A1 #A1285E #9AA128 #28A16C

split-complementary

#2F28A1 #A16C28 #5EA128

monochromatic

#12103F #211C70 #2F28A1 #4139CE #706ADA

Accessibility & contrast

On white

10.83

#2F28A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2F28A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F28A1

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F28A1	#FFFFFF	#000000	##FFFFFF
##2F28A1	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A5

Deuteranopia (green-blind)

#00389F

Tritanopia (blue-blind)

#004B62

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f28a1;
/* rgb */ color: rgb(47, 40, 161);
/* oklch */ color: oklch(37.9% 0.185 275.5);

Tailwind

colors: {
  custom: {
    50: '#7964be',
    500: '#2f28a1',
    950: '#000000',
  },
}

SCSS

$custom: #2f28a1;
$custom-light: #7964be;
$custom-dark: #000000;

JSON

{
  "hex": "#2f28a1",
  "rgb": {
    "r": 47,
    "g": 40,
    "b": 161
  },
  "hsl": {
    "h": 243.471,
    "s": 60.199,
    "l": 39.412
  },
  "oklch": {
    "l": 0.37883,
    "c": 0.18521,
    "h": 275.5
  },
  "luminance": 0.04695
}

Semantic roles & 50–950 ramp

primary

#2F28A1

secondary

#BBC065

accent

#E344DA

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2F28A1

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

Preview Lab → · Contrast checker → · Palette generator →