#3948B5#3948B5

#3948B5 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.7% C 0.172 H 271.8°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#3948B5
RGB	rgb(57, 72, 181)
HSL	hsl(233, 52%, 47%)
HSV	hsv(233, 69%, 71%)
CMYK	cmyk(68.5%, 60.2%, 0%, 29%)
CIE-LAB	lab(35.67, 30.46, -59.62)
CIE-LCH	lch(35.67, 66.95, 297.07°)
OKLab	oklab(45.74% 0.0053 -0.1719)
OKLCH	oklch(45.74% 0.172 271.8)
XYZ	xyz(12.3424, 8.8396, 44.7629)
Luminance	0.0884 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3948B5 #B5A639

analogous

#3986B5 #3948B5 #6839B5

triadic

#3948B5 #B53948 #48B539

tetradic

#3948B5 #B53986 #B5A639 #39B568

square

#3948B5 #B53986 #B5A639 #39B568

split-complementary

#3948B5 #B56839 #86B539

monochromatic

#1C2358 #2A3586 #3948B5 #5F6CCD #8D97DB

Accessibility & contrast

On white

7.59

#3948B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3948B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3948B5

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3948B5	#FFFFFF	#000000	##FFFFFF
##3948B5	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB9

Deuteranopia (green-blind)

#004EB3

Tritanopia (blue-blind)

#006377

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3948b5;
/* rgb */ color: rgb(57, 72, 181);
/* oklch */ color: oklch(45.7% 0.172 271.8);

Tailwind

colors: {
  custom: {
    50: '#7f7bcc',
    500: '#3948b5',
    950: '#000000',
  },
}

SCSS

$custom: #3948b5;
$custom-light: #7f7bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3948b5",
  "rgb": {
    "r": 57,
    "g": 72,
    "b": 181
  },
  "hsl": {
    "h": 232.742,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.45744,
    "c": 0.17196,
    "h": 271.8
  },
  "luminance": 0.08841
}

Semantic roles & 50–950 ramp

primary

#3948B5

secondary

#C6BE84

accent

#CA4CDC

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3948B5

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

Preview Lab → · Contrast checker → · Palette generator →