#3951DA#3951DA

#3951DA is a mid, highly saturated blue. Relative luminance 0.118; OKLCH L 50.6% C 0.210 H 269.5°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#3951DA
RGB	rgb(57, 81, 218)
HSL	hsl(231, 69%, 54%)
HSV	hsv(231, 74%, 85%)
CMYK	cmyk(73.9%, 62.8%, 0%, 14.5%)
CIE-LAB	lab(40.92, 37.91, -72.55)
CIE-LCH	lch(40.92, 81.86, 297.59°)
OKLab	oklab(50.56% -0.002 -0.2097)
OKLCH	oklch(50.56% 0.21 269.5)
XYZ	xyz(17.2803, 11.8148, 67.6858)
Luminance	0.1182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3951DA #DAC239

analogous

#39A2DA #3951DA #7239DA

triadic

#3951DA #DA3951 #51DA39

tetradic

#3951DA #DA39A2 #DAC239 #39DA72

square

#3951DA #DA39A2 #DAC239 #39DA72

split-complementary

#3951DA #DA7239 #A2DA39

monochromatic

#182881 #2237B4 #3951DA #6D7EE4 #A0ACED

Accessibility & contrast

On white

6.24

#3951DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#3951DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3951DA

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3951DA	#FFFFFF	#000000	##FFFFFF
##3951DA	1.00	6.24	3.36	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068DE

Deuteranopia (green-blind)

#0059D7

Tritanopia (blue-blind)

#00758E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3951da;
/* rgb */ color: rgb(57, 81, 218);
/* oklch */ color: oklch(50.6% 0.210 269.5);

Tailwind

colors: {
  custom: {
    50: '#8681e7',
    500: '#3951da',
    950: '#000000',
  },
}

SCSS

$custom: #3951da;
$custom-light: #8681e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3951da",
  "rgb": {
    "r": 57,
    "g": 81,
    "b": 218
  },
  "hsl": {
    "h": 231.056,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.50562,
    "c": 0.20974,
    "h": 269.5
  },
  "luminance": 0.11817
}

Semantic roles & 50–950 ramp

primary

#3951DA

secondary

#DAD095

accent

#D13CEB

background

#F9F7FE

surface

#F1EEFD

border

#CBC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #3951DA

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

Preview Lab → · Contrast checker → · Palette generator →