#3A3A91#3A3A91

#3A3A91 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.140 H 278.1°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#3A3A91
RGB	rgb(58, 58, 145)
HSL	hsl(240, 43%, 40%)
HSV	hsv(240, 60%, 57%)
CMYK	cmyk(60%, 60%, 0%, 43.1%)
CIE-LAB	lab(29.34, 27.02, -48.25)
CIE-LCH	lch(29.34, 55.30, 299.25°)
OKLab	oklab(40.17% 0.0196 -0.1386)
OKLCH	oklch(40.17% 0.14 278.1)
XYZ	xyz(8.3672, 5.9694, 27.4939)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A3A91 #91913A

analogous

#3A6691 #3A3A91 #663A91

triadic

#3A3A91 #913A3A #3A913A

tetradic

#3A3A91 #913A66 #91913A #3A9166

square

#3A3A91 #913A66 #91913A #3A9166

split-complementary

#3A3A91 #91663A #66913A

monochromatic

#17173A #292965 #3A3A91 #4F4FB9 #7B7BCA

Accessibility & contrast

On white

9.57

#3A3A91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#3A3A91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A3A91

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A3A91	#FFFFFF	#000000	##FFFFFF
##3A3A91	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#00428F

Tritanopia (blue-blind)

#004F5F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3a3a91;
/* rgb */ color: rgb(58, 58, 145);
/* oklch */ color: oklch(40.2% 0.140 278.1);

Tailwind

colors: {
  custom: {
    50: '#7970b2',
    500: '#3a3a91',
    950: '#000000',
  },
}

SCSS

$custom: #3a3a91;
$custom-light: #7970b2;
$custom-dark: #000000;

JSON

{
  "hex": "#3a3a91",
  "rgb": {
    "r": 58,
    "g": 58,
    "b": 145
  },
  "hsl": {
    "h": 240,
    "s": 42.857,
    "l": 39.804
  },
  "oklch": {
    "l": 0.40174,
    "c": 0.13994,
    "h": 278.1
  },
  "luminance": 0.0597
}

Semantic roles & 50–950 ramp

primary

#3A3A91

secondary

#B4B473

accent

#D355D3

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #3A3A91

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

Preview Lab → · Contrast checker → · Palette generator →