#3943AA#3943AA

#3943AA is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.9% C 0.163 H 273.4°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#3943AA
RGB	rgb(57, 67, 170)
HSL	hsl(235, 50%, 45%)
HSV	hsv(235, 66%, 67%)
CMYK	cmyk(66.5%, 60.6%, 0%, 33.3%)
CIE-LAB	lab(33.53, 29.78, -56.57)
CIE-LCH	lch(33.53, 63.93, 297.76°)
OKLab	oklab(43.88% 0.0096 -0.163)
OKLCH	oklch(43.88% 0.163 273.4)
XYZ	xyz(10.9478, 7.7855, 38.9482)
Luminance	0.0779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3943AA #AAA039

analogous

#397CAA #3943AA #6739AA

triadic

#3943AA #AA3943 #43AA39

tetradic

#3943AA #AA397C #AAA039 #39AA67

square

#3943AA #AA397C #AAA039 #39AA67

split-complementary

#3943AA #AA6739 #7CAA39

monochromatic

#1A1F4E #2A317C #3943AA #5963C7 #878ED7

Accessibility & contrast

On white

8.21

#3943AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3943AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943AA

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943AA	#FFFFFF	#000000	##FFFFFF
##3943AA	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AD

Deuteranopia (green-blind)

#004AA8

Tritanopia (blue-blind)

#005D70

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3943aa;
/* rgb */ color: rgb(57, 67, 170);
/* oklch */ color: oklch(43.9% 0.163 273.4);

Tailwind

colors: {
  custom: {
    50: '#7d77c4',
    500: '#3943aa',
    950: '#000000',
  },
}

SCSS

$custom: #3943aa;
$custom-light: #7d77c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3943aa",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 170
  },
  "hsl": {
    "h": 234.69,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43883,
    "c": 0.16326,
    "h": 273.4
  },
  "luminance": 0.07786
}

Semantic roles & 50–950 ramp

primary

#3943AA

secondary

#C1BB7E

accent

#CD4ED9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3943AA

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

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