#3A28B4#3A28B4

#3A28B4 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.7% C 0.206 H 277.9°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#3A28B4
RGB	rgb(58, 40, 180)
HSL	hsl(248, 64%, 43%)
HSV	hsv(248, 78%, 71%)
CMYK	cmyk(67.8%, 77.8%, 0%, 29.4%)
CIE-LAB	lab(28.67, 49.17, -70.51)
CIE-LCH	lch(28.67, 85.96, 304.89°)
OKLab	oklab(40.68% 0.0281 -0.2037)
OKLCH	oklch(40.68% 0.206 277.9)
XYZ	xyz(10.7393, 5.7115, 43.7076)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A28B4 #A2B428

analogous

#285CB4 #3A28B4 #8028B4

triadic

#3A28B4 #B43A28 #28B43A

tetradic

#3A28B4 #B4285C #A2B428 #28B480

square

#3A28B4 #B4285C #A2B428 #28B480

split-complementary

#3A28B4 #B48028 #5CB428

monochromatic

#1A1250 #2A1D82 #3A28B4 #5744D5 #8476E1

Accessibility & contrast

On white

9.80

#3A28B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#3A28B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A28B4

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A28B4	#FFFFFF	#000000	##FFFFFF
##3A28B4	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B8

Deuteranopia (green-blind)

#003EB2

Tritanopia (blue-blind)

#00526D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3a28b4;
/* rgb */ color: rgb(58, 40, 180);
/* oklch */ color: oklch(40.7% 0.206 277.9);

Tailwind

colors: {
  custom: {
    50: '#8266cc',
    500: '#3a28b4',
    950: '#000000',
  },
}

SCSS

$custom: #3a28b4;
$custom-light: #8266cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a28b4",
  "rgb": {
    "r": 58,
    "g": 40,
    "b": 180
  },
  "hsl": {
    "h": 247.714,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4068,
    "c": 0.20564,
    "h": 277.9
  },
  "luminance": 0.05712
}

Semantic roles & 50–950 ramp

primary

#3A28B4

secondary

#BDC870

accent

#E741D1

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3A28B4

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

Preview Lab → · Contrast checker → · Palette generator →