#3A307B#3A307B

#3A307B is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.5% C 0.123 H 284.6°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#3A307B
RGB	rgb(58, 48, 123)
HSL	hsl(248, 44%, 34%)
HSV	hsv(248, 61%, 48%)
CMYK	cmyk(52.8%, 61%, 0%, 51.8%)
CIE-LAB	lab(25.09, 26.07, -41.43)
CIE-LCH	lch(25.09, 48.95, 302.18°)
OKLab	oklab(36.5% 0.0309 -0.1185)
OKLCH	oklch(36.5% 0.123 284.6)
XYZ	xyz(6.3760, 4.4432, 19.2567)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A307B #717B30

analogous

#304B7B #3A307B #5F307B

triadic

#3A307B #7B3A30 #307B3A

tetradic

#3A307B #7B304B #717B30 #307B5F

square

#3A307B #7B304B #717B30 #307B5F

split-complementary

#3A307B #7B5F30 #4B7B30

monochromatic

#100E23 #251F4F #3A307B #4F41A7 #7063C2

Accessibility & contrast

On white

11.12

#3A307B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#3A307B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A307B

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A307B	#FFFFFF	#000000	##FFFFFF
##3A307B	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7D

Deuteranopia (green-blind)

#003979

Tritanopia (blue-blind)

#214150

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #3a307b;
/* rgb */ color: rgb(58, 48, 123);
/* oklch */ color: oklch(36.5% 0.123 284.6);

Tailwind

colors: {
  custom: {
    50: '#7668a2',
    500: '#3a307b',
    950: '#000000',
  },
}

SCSS

$custom: #3a307b;
$custom-light: #7668a2;
$custom-dark: #000000;

JSON

{
  "hex": "#3a307b",
  "rgb": {
    "r": 58,
    "g": 48,
    "b": 123
  },
  "hsl": {
    "h": 248,
    "s": 43.86,
    "l": 33.529
  },
  "oklch": {
    "l": 0.36497,
    "c": 0.12252,
    "h": 284.6
  },
  "luminance": 0.04444
}

Semantic roles & 50–950 ramp

primary

#3A307B

secondary

#9FA95D

accent

#D454C3

background

#F7F6FA

surface

#EDEBF3

border

#C8C6CD

text

#09060F

muted

#7B7A7F

Preview Lab

Preview with #3A307B

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

Preview Lab → · Contrast checker → · Palette generator →