#3949A8#3949A8

#3949A8 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.9% C 0.153 H 271.6°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#3949A8
RGB	rgb(57, 73, 168)
HSL	hsl(231, 49%, 44%)
HSV	hsv(231, 66%, 66%)
CMYK	cmyk(66.1%, 56.5%, 0%, 34.1%)
CIE-LAB	lab(34.93, 25.15, -53.11)
CIE-LCH	lch(34.93, 58.77, 295.34°)
OKLab	oklab(44.87% 0.0043 -0.1527)
OKLCH	oklch(44.87% 0.153 271.6)
XYZ	xyz(11.1354, 8.4611, 38.0845)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949A8 #A89839

analogous

#3981A8 #3949A8 #6139A8

triadic

#3949A8 #A83949 #49A839

tetradic

#3949A8 #A83981 #A89839 #39A861

square

#3949A8 #A83981 #A89839 #39A861

split-complementary

#3949A8 #A86139 #81A839

monochromatic

#1A214D #29357A #3949A8 #5868C6 #8691D6

Accessibility & contrast

On white

7.80

#3949A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3949A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949A8

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949A8	#FFFFFF	#000000	##FFFFFF
##3949A8	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AB

Deuteranopia (green-blind)

#004DA6

Tritanopia (blue-blind)

#006071

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3949a8;
/* rgb */ color: rgb(57, 73, 168);
/* oklch */ color: oklch(44.9% 0.153 271.6);

Tailwind

colors: {
  custom: {
    50: '#7c7bc3',
    500: '#3949a8',
    950: '#000000',
  },
}

SCSS

$custom: #3949a8;
$custom-light: #7c7bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#3949a8",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 168
  },
  "hsl": {
    "h": 231.351,
    "s": 49.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.44871,
    "c": 0.1528,
    "h": 271.6
  },
  "luminance": 0.08462
}

Semantic roles & 50–950 ramp

primary

#3949A8

secondary

#C0B67D

accent

#C54FD9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #3949A8

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

Preview Lab → · Contrast checker → · Palette generator →