#2F28B7#2F28B7

#2F28B7 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.3% C 0.212 H 273.5°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#2F28B7
RGB	rgb(47, 40, 183)
HSL	hsl(243, 64%, 44%)
HSV	hsv(243, 78%, 72%)
CMYK	cmyk(74.3%, 78.1%, 0%, 28.2%)
CIE-LAB	lab(28.22, 49.12, -73.07)
CIE-LCH	lch(28.22, 88.05, 303.91°)
OKLab	oklab(40.26% 0.0129 -0.2114)
OKLCH	oklch(40.26% 0.212 273.5)
XYZ	xyz(10.4755, 5.5397, 45.3078)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F28B7 #B0B728

analogous

#2868B7 #2F28B7 #7628B7

triadic

#2F28B7 #B72F28 #28B72F

tetradic

#2F28B7 #B72868 #B0B728 #28B776

square

#2F28B7 #B72868 #B0B728 #28B776

split-complementary

#2F28B7 #B77628 #68B728

monochromatic

#151253 #221D85 #2F28B7 #4D46D6 #7D78E1

Accessibility & contrast

On white

9.96

#2F28B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2F28B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F28B7

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F28B7	#FFFFFF	#000000	##FFFFFF
##2F28B7	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049BB

Deuteranopia (green-blind)

#003CB5

Tritanopia (blue-blind)

#00536F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2f28b7;
/* rgb */ color: rgb(47, 40, 183);
/* oklch */ color: oklch(40.3% 0.212 273.5);

Tailwind

colors: {
  custom: {
    50: '#7e65ce',
    500: '#2f28b7',
    950: '#000000',
  },
}

SCSS

$custom: #2f28b7;
$custom-light: #7e65ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2f28b7",
  "rgb": {
    "r": 47,
    "g": 40,
    "b": 183
  },
  "hsl": {
    "h": 242.937,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40257,
    "c": 0.2118,
    "h": 273.5
  },
  "luminance": 0.05541
}

Semantic roles & 50–950 ramp

primary

#2F28B7

secondary

#C5C972

accent

#E741DF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #2F28B7

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

Preview Lab → · Contrast checker → · Palette generator →