#2F28A5#2F28A5

#2F28A5 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.3% C 0.190 H 275.1°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#2F28A5
RGB	rgb(47, 40, 165)
HSL	hsl(243, 61%, 40%)
HSV	hsv(243, 76%, 65%)
CMYK	cmyk(71.5%, 75.8%, 0%, 35.3%)
CIE-LAB	lab(26.27, 43.33, -65.50)
CIE-LCH	lch(26.27, 78.54, 303.48°)
OKLab	oklab(38.31% 0.0168 -0.1894)
OKLCH	oklch(38.31% 0.19 275.1)
XYZ	xyz(8.7204, 4.8377, 36.0642)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F28A5 #9EA528

analogous

#285FA5 #2F28A5 #6D28A5

triadic

#2F28A5 #A52F28 #28A52F

tetradic

#2F28A5 #A5285F #9EA528 #28A56D

square

#2F28A5 #A5285F #9EA528 #28A56D

split-complementary

#2F28A5 #A56D28 #5FA528

monochromatic

#131042 #211C74 #2F28A5 #433BCF #726CDB

Accessibility & contrast

On white

10.67

#2F28A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#2F28A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F28A5

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F28A5	#FFFFFF	#000000	##FFFFFF
##2F28A5	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A9

Deuteranopia (green-blind)

#0038A3

Tritanopia (blue-blind)

#004C65

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2f28a5;
/* rgb */ color: rgb(47, 40, 165);
/* oklch */ color: oklch(38.3% 0.190 275.1);

Tailwind

colors: {
  custom: {
    50: '#7a64c1',
    500: '#2f28a5',
    950: '#000000',
  },
}

SCSS

$custom: #2f28a5;
$custom-light: #7a64c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f28a5",
  "rgb": {
    "r": 47,
    "g": 40,
    "b": 165
  },
  "hsl": {
    "h": 243.36,
    "s": 60.976,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38306,
    "c": 0.19016,
    "h": 275.1
  },
  "luminance": 0.04839
}

Semantic roles & 50–950 ramp

primary

#2F28A5

secondary

#BDC267

accent

#E444DB

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0512

muted

#7C7A81

Preview Lab

Preview with #2F28A5

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

Preview Lab → · Contrast checker → · Palette generator →