#2F28C5#2F28C5

#2F28C5 is a dark, highly saturated blue. Relative luminance 0.062; OKLCH L 41.8% C 0.228 H 272.4°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#2F28C5
RGB	rgb(47, 40, 197)
HSL	hsl(243, 66%, 46%)
HSV	hsv(243, 80%, 77%)
CMYK	cmyk(76.1%, 79.7%, 0%, 22.7%)
CIE-LAB	lab(29.79, 53.49, -78.74)
CIE-LCH	lch(29.79, 95.19, 304.19°)
OKLab	oklab(41.81% 0.0097 -0.2278)
OKLCH	oklch(41.81% 0.228 272.4)
XYZ	xyz(12.0057, 6.1518, 53.3672)
Luminance	0.0615 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F28C5 #BEC528

analogous

#2870C5 #2F28C5 #7E28C5

triadic

#2F28C5 #C52F28 #28C52F

tetradic

#2F28C5 #C52870 #BEC528 #28C57E

square

#2F28C5 #C52870 #BEC528 #28C57E

split-complementary

#2F28C5 #C57E28 #70C528

monochromatic

#17135F #231E92 #2F28C5 #554FDB #8682E6

Accessibility & contrast

On white

9.41

#2F28C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#2F28C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F28C5

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F28C5	#FFFFFF	#000000	##FFFFFF
##2F28C5	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EC9

Deuteranopia (green-blind)

#003EC2

Tritanopia (blue-blind)

#005977

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2f28c5;
/* rgb */ color: rgb(47, 40, 197);
/* oklch */ color: oklch(41.8% 0.228 272.4);

Tailwind

colors: {
  custom: {
    50: '#8166d8',
    500: '#2f28c5',
    950: '#000000',
  },
}

SCSS

$custom: #2f28c5;
$custom-light: #8166d8;
$custom-dark: #000000;

JSON

{
  "hex": "#2f28c5",
  "rgb": {
    "r": 47,
    "g": 40,
    "b": 197
  },
  "hsl": {
    "h": 242.675,
    "s": 66.245,
    "l": 46.471
  },
  "oklch": {
    "l": 0.41814,
    "c": 0.22806,
    "h": 272.4
  },
  "luminance": 0.06153
}

Semantic roles & 50–950 ramp

primary

#2F28C5

secondary

#CBCE7A

accent

#E93FE2

background

#F8F6FD

surface

#F0EBFB

border

#CBC6D4

text

#0C0615

muted

#7D7A83

Preview Lab

Preview with #2F28C5

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

Preview Lab → · Contrast checker → · Palette generator →