#3950B3#3950B3

#3950B3 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.1% C 0.159 H 269.5°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#3950B3
RGB	rgb(57, 80, 179)
HSL	hsl(229, 52%, 46%)
HSV	hsv(229, 68%, 70%)
CMYK	cmyk(68.2%, 55.3%, 0%, 29.8%)
CIE-LAB	lab(37.59, 24.55, -55.32)
CIE-LCH	lch(37.59, 60.53, 293.93°)
OKLab	oklab(47.13% -0.0014 -0.1592)
OKLCH	oklch(47.13% 0.159 269.5)
XYZ	xyz(12.6899, 9.8606, 43.8736)
Luminance	0.0986 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3950B3 #B39C39

analogous

#398DB3 #3950B3 #5F39B3

triadic

#3950B3 #B33950 #50B339

tetradic

#3950B3 #B3398D #B39C39 #39B35F

square

#3950B3 #B3398D #B39C39 #39B35F

split-complementary

#3950B3 #B35F39 #8DB339

monochromatic

#1B2756 #2A3B85 #3950B3 #5E72CC #8C9BDA

Accessibility & contrast

On white

7.06

#3950B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#3950B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3950B3

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3950B3	#FFFFFF	#000000	##FFFFFF
##3950B3	1.00	7.06	2.97	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB6

Deuteranopia (green-blind)

#0053B1

Tritanopia (blue-blind)

#006879

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3950b3;
/* rgb */ color: rgb(57, 80, 179);
/* oklch */ color: oklch(47.1% 0.159 269.5);

Tailwind

colors: {
  custom: {
    50: '#7e80ca',
    500: '#3950b3',
    950: '#000000',
  },
}

SCSS

$custom: #3950b3;
$custom-light: #7e80ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3950b3",
  "rgb": {
    "r": 57,
    "g": 80,
    "b": 179
  },
  "hsl": {
    "h": 228.689,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.47127,
    "c": 0.15916,
    "h": 269.5
  },
  "luminance": 0.09862
}

Semantic roles & 50–950 ramp

primary

#3950B3

secondary

#C5B883

accent

#C04DDB

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3950B3

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

Preview Lab → · Contrast checker → · Palette generator →