#3951C1#3951C1

#3951C1 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.4% C 0.177 H 269.4°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#3951C1
RGB	rgb(57, 81, 193)
HSL	hsl(229, 54%, 49%)
HSV	hsv(229, 70%, 76%)
CMYK	cmyk(70.5%, 58%, 0%, 24.3%)
CIE-LAB	lab(38.90, 28.98, -61.40)
CIE-LCH	lch(38.90, 67.90, 295.26°)
OKLab	oklab(48.44% -0.0017 -0.177)
OKLCH	oklch(48.44% 0.177 269.4)
XYZ	xyz(14.2521, 10.6035, 51.7373)
Luminance	0.1061 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3951C1 #C1A939

analogous

#3995C1 #3951C1 #6539C1

triadic

#3951C1 #C13951 #51C139

tetradic

#3951C1 #C13995 #C1A939 #39C165

square

#3951C1 #C13995 #C1A939 #39C165

split-complementary

#3951C1 #C16539 #95C139

monochromatic

#1D2963 #2B3D92 #3951C1 #6679D2 #95A2E0

Accessibility & contrast

On white

6.73

#3951C1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3951C1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3951C1

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3951C1	#FFFFFF	#000000	##FFFFFF
##3951C1	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C5

Deuteranopia (green-blind)

#0056BF

Tritanopia (blue-blind)

#006D81

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3951c1;
/* rgb */ color: rgb(57, 81, 193);
/* oklch */ color: oklch(48.4% 0.177 269.4);

Tailwind

colors: {
  custom: {
    50: '#8181d5',
    500: '#3951c1',
    950: '#000000',
  },
}

SCSS

$custom: #3951c1;
$custom-light: #8181d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3951c1",
  "rgb": {
    "r": 57,
    "g": 81,
    "b": 193
  },
  "hsl": {
    "h": 229.412,
    "s": 54.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.48442,
    "c": 0.17702,
    "h": 269.4
  },
  "luminance": 0.10605
}

Semantic roles & 50–950 ramp

primary

#3951C1

secondary

#CBC08B

accent

#C44ADE

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3951C1

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

Preview Lab → · Contrast checker → · Palette generator →