#3948B3#3948B3

#3948B3 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.6% C 0.169 H 271.8°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#3948B3
RGB	rgb(57, 72, 179)
HSL	hsl(233, 52%, 46%)
HSV	hsv(233, 68%, 70%)
CMYK	cmyk(68.2%, 59.8%, 0%, 29.8%)
CIE-LAB	lab(35.51, 29.75, -58.70)
CIE-LCH	lch(35.51, 65.81, 296.88°)
OKLab	oklab(45.58% 0.0053 -0.1692)
OKLCH	oklch(45.58% 0.169 271.8)
XYZ	xyz(12.1386, 8.7581, 43.6899)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3948B3 #B3A439

analogous

#3985B3 #3948B3 #6739B3

triadic

#3948B3 #B33948 #48B339

tetradic

#3948B3 #B33985 #B3A439 #39B367

square

#3948B3 #B33985 #B3A439 #39B367

split-complementary

#3948B3 #B36739 #85B339

monochromatic

#1B2356 #2A3585 #3948B3 #5E6BCC #8C96DA

Accessibility & contrast

On white

7.63

#3948B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3948B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3948B3

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3948B3	#FFFFFF	#000000	##FFFFFF
##3948B3	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B7

Deuteranopia (green-blind)

#004EB1

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3948b3;
/* rgb */ color: rgb(57, 72, 179);
/* oklch */ color: oklch(45.6% 0.169 271.8);

Tailwind

colors: {
  custom: {
    50: '#7e7acb',
    500: '#3948b3',
    950: '#000000',
  },
}

SCSS

$custom: #3948b3;
$custom-light: #7e7acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3948b3",
  "rgb": {
    "r": 57,
    "g": 72,
    "b": 179
  },
  "hsl": {
    "h": 232.623,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.45576,
    "c": 0.16925,
    "h": 271.8
  },
  "luminance": 0.08759
}

Semantic roles & 50–950 ramp

primary

#3948B3

secondary

#C5BD83

accent

#CA4DDB

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3948B3

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

Preview Lab → · Contrast checker → · Palette generator →