#3949DB#3949DB

#3949DB is a mid, highly saturated blue. Relative luminance 0.107; OKLCH L 49.3% C 0.220 H 270.7°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#3949DB
RGB	rgb(57, 73, 219)
HSL	hsl(234, 69%, 54%)
HSV	hsv(234, 74%, 86%)
CMYK	cmyk(74%, 66.7%, 0%, 14.1%)
CIE-LAB	lab(39.15, 43.17, -76.02)
CIE-LCH	lch(39.15, 87.42, 299.59°)
OKLab	oklab(49.3% 0.0027 -0.2199)
OKLCH	oklch(49.3% 0.22 270.7)
XYZ	xyz(16.8517, 10.7476, 68.1905)
Luminance	0.1075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.43

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949DB #DBCB39

analogous

#399ADB #3949DB #7A39DB

triadic

#3949DB #DB3949 #49DB39

tetradic

#3949DB #DB399A #DBCB39 #39DB7A

square

#3949DB #DB399A #DBCB39 #39DB7A

split-complementary

#3949DB #DB7A39 #9ADB39

monochromatic

#182282 #2130B6 #3949DB #6D79E4 #A1A8EE

Accessibility & contrast

On white

6.67

#3949DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3949DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3949DB

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949DB	#FFFFFF	#000000	##FFFFFF
##3949DB	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064E0

Deuteranopia (green-blind)

#0055D8

Tritanopia (blue-blind)

#00708C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3949db;
/* rgb */ color: rgb(57, 73, 219);
/* oklch */ color: oklch(49.3% 0.220 270.7);

Tailwind

colors: {
  custom: {
    50: '#877ce7',
    500: '#3949db',
    950: '#000000',
  },
}

SCSS

$custom: #3949db;
$custom-light: #877ce7;
$custom-dark: #000000;

JSON

{
  "hex": "#3949db",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 219
  },
  "hsl": {
    "h": 234.074,
    "s": 69.231,
    "l": 54.118
  },
  "oklch": {
    "l": 0.49295,
    "c": 0.21995,
    "h": 270.7
  },
  "luminance": 0.10749
}

Semantic roles & 50–950 ramp

primary

#3949DB

secondary

#DAD495

accent

#DB3CEC

background

#F9F7FE

surface

#F1EEFD

border

#CBC9D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #3949DB

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

Preview Lab → · Contrast checker → · Palette generator →