#3948B2#3948B2

#3948B2 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.5% C 0.168 H 271.8°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#3948B2
RGB	rgb(57, 72, 178)
HSL	hsl(233, 51%, 46%)
HSV	hsv(233, 68%, 70%)
CMYK	cmyk(68%, 59.6%, 0%, 30.2%)
CIE-LAB	lab(35.44, 29.39, -58.23)
CIE-LCH	lch(35.44, 65.23, 296.78°)
OKLab	oklab(45.49% 0.0053 -0.1678)
OKLCH	oklch(45.49% 0.168 271.8)
XYZ	xyz(12.0379, 8.7178, 43.1592)
Luminance	0.0872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3948B2 #B2A339

analogous

#3984B2 #3948B2 #6639B2

triadic

#3948B2 #B23948 #48B239

tetradic

#3948B2 #B23984 #B2A339 #39B266

square

#3948B2 #B23984 #B2A339 #39B266

split-complementary

#3948B2 #B26639 #84B239

monochromatic

#1B2255 #2A3584 #3948B2 #5D6BCB #8B95DA

Accessibility & contrast

On white

7.65

#3948B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3948B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3948B2

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3948B2	#FFFFFF	#000000	##FFFFFF
##3948B2	1.00	7.65	2.74	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B6

Deuteranopia (green-blind)

#004EB0

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3948b2;
/* rgb */ color: rgb(57, 72, 178);
/* oklch */ color: oklch(45.5% 0.168 271.8);

Tailwind

colors: {
  custom: {
    50: '#7e7aca',
    500: '#3948b2',
    950: '#000000',
  },
}

SCSS

$custom: #3948b2;
$custom-light: #7e7aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3948b2",
  "rgb": {
    "r": 57,
    "g": 72,
    "b": 178
  },
  "hsl": {
    "h": 232.562,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.45493,
    "c": 0.16789,
    "h": 271.8
  },
  "luminance": 0.08719
}

Semantic roles & 50–950 ramp

primary

#3948B2

secondary

#C4BC82

accent

#C94DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3948B2

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

Preview Lab → · Contrast checker → · Palette generator →