#3A428F#3A428F

#3A428F is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.6% C 0.126 H 275.0°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#3A428F
RGB	rgb(58, 66, 143)
HSL	hsl(234, 42%, 39%)
HSV	hsv(234, 59%, 56%)
CMYK	cmyk(59.4%, 53.8%, 0%, 43.9%)
CIE-LAB	lab(31.30, 21.03, -43.85)
CIE-LCH	lch(31.30, 48.63, 295.63°)
OKLab	oklab(41.59% 0.0111 -0.1255)
OKLCH	oklch(41.59% 0.126 275)
XYZ	xyz(8.6495, 6.7785, 26.8339)
Luminance	0.0678 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A428F #8F873A

analogous

#3A6D8F #3A428F #5D3A8F

triadic

#3A428F #8F3A42 #428F3A

tetradic

#3A428F #8F3A6D #8F873A #3A8F5D

square

#3A428F #8F3A6D #8F873A #3A8F5D

split-complementary

#3A428F #8F5D3A #6D8F3A

monochromatic

#171A38 #282E63 #3A428F #4F59B7 #7A82C9

Accessibility & contrast

On white

8.91

#3A428F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3A428F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A428F

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A428F	#FFFFFF	#000000	##FFFFFF
##3A428F	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154D92

Deuteranopia (green-blind)

#00468D

Tritanopia (blue-blind)

#005462

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3a428f;
/* rgb */ color: rgb(58, 66, 143);
/* oklch */ color: oklch(41.6% 0.126 275.0);

Tailwind

colors: {
  custom: {
    50: '#7876b0',
    500: '#3a428f',
    950: '#000000',
  },
}

SCSS

$custom: #3a428f;
$custom-light: #7876b0;
$custom-dark: #000000;

JSON

{
  "hex": "#3a428f",
  "rgb": {
    "r": 58,
    "g": 66,
    "b": 143
  },
  "hsl": {
    "h": 234.353,
    "s": 42.289,
    "l": 39.412
  },
  "oklch": {
    "l": 0.4159,
    "c": 0.12602,
    "h": 275
  },
  "luminance": 0.06779
}

Semantic roles & 50–950 ramp

primary

#3A428F

secondary

#B3AC72

accent

#C656D2

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #3A428F

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

Preview Lab → · Contrast checker → · Palette generator →