#3948A0#3948A0

#3948A0 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.0% C 0.143 H 272.0°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#3948A0
RGB	rgb(57, 72, 160)
HSL	hsl(231, 47%, 43%)
HSV	hsv(231, 64%, 63%)
CMYK	cmyk(64.4%, 55%, 0%, 37.3%)
CIE-LAB	lab(34.07, 22.93, -49.70)
CIE-LCH	lch(34.07, 54.74, 294.77°)
OKLab	oklab(44.04% 0.0049 -0.1427)
OKLCH	oklch(44.04% 0.143 272)
XYZ	xyz(10.3477, 8.0418, 34.2578)
Luminance	0.0804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3948A0 #A09139

analogous

#397CA0 #3948A0 #5D39A0

triadic

#3948A0 #A03948 #48A039

tetradic

#3948A0 #A0397C #A09139 #39A05D

square

#3948A0 #A0397C #A09139 #39A05D

split-complementary

#3948A0 #A05D39 #7CA039

monochromatic

#191F46 #293473 #3948A0 #5464C2 #818DD2

Accessibility & contrast

On white

8.05

#3948A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3948A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3948A0

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3948A0	#FFFFFF	#000000	##FFFFFF
##3948A0	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0855A3

Deuteranopia (green-blind)

#004C9E

Tritanopia (blue-blind)

#005D6D

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3948a0;
/* rgb */ color: rgb(57, 72, 160);
/* oklch */ color: oklch(44.0% 0.143 272.0);

Tailwind

colors: {
  custom: {
    50: '#7b7abd',
    500: '#3948a0',
    950: '#000000',
  },
}

SCSS

$custom: #3948a0;
$custom-light: #7b7abd;
$custom-dark: #000000;

JSON

{
  "hex": "#3948a0",
  "rgb": {
    "r": 57,
    "g": 72,
    "b": 160
  },
  "hsl": {
    "h": 231.262,
    "s": 47.465,
    "l": 42.549
  },
  "oklch": {
    "l": 0.44043,
    "c": 0.14279,
    "h": 272
  },
  "luminance": 0.08043
}

Semantic roles & 50–950 ramp

primary

#3948A0

secondary

#BCB279

accent

#C451D7

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3948A0

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

Preview Lab → · Contrast checker → · Palette generator →