#3948B0#3948B0

#3948B0 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.3% C 0.165 H 271.8°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#3948B0
RGB	rgb(57, 72, 176)
HSL	hsl(232, 51%, 46%)
HSV	hsv(232, 68%, 69%)
CMYK	cmyk(67.6%, 59.1%, 0%, 31%)
CIE-LAB	lab(35.28, 28.68, -57.30)
CIE-LCH	lch(35.28, 64.08, 296.58°)
OKLab	oklab(45.33% 0.0053 -0.1651)
OKLCH	oklch(45.33% 0.165 271.8)
XYZ	xyz(11.8385, 8.6381, 42.1093)
Luminance	0.0864 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3948B0 #B0A139

analogous

#3983B0 #3948B0 #6539B0

triadic

#3948B0 #B03948 #48B039

tetradic

#3948B0 #B03983 #B0A139 #39B065

square

#3948B0 #B03983 #B0A139 #39B065

split-complementary

#3948B0 #B06539 #83B039

monochromatic

#1B2254 #2A3582 #3948B0 #5C6ACA #8A94D9

Accessibility & contrast

On white

7.70

#3948B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3948B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3948B0

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3948B0	#FFFFFF	#000000	##FFFFFF
##3948B0	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B3

Deuteranopia (green-blind)

#004EAE

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3948b0;
/* rgb */ color: rgb(57, 72, 176);
/* oklch */ color: oklch(45.3% 0.165 271.8);

Tailwind

colors: {
  custom: {
    50: '#7e7ac8',
    500: '#3948b0',
    950: '#000000',
  },
}

SCSS

$custom: #3948b0;
$custom-light: #7e7ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#3948b0",
  "rgb": {
    "r": 57,
    "g": 72,
    "b": 176
  },
  "hsl": {
    "h": 232.437,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.45326,
    "c": 0.16516,
    "h": 271.8
  },
  "luminance": 0.08639
}

Semantic roles & 50–950 ramp

primary

#3948B0

secondary

#C4BB81

accent

#C94DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3948B0

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

Preview Lab → · Contrast checker → · Palette generator →