#3950B1#3950B1

#3950B1 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.0% C 0.156 H 269.4°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#3950B1
RGB	rgb(57, 80, 177)
HSL	hsl(229, 51%, 46%)
HSV	hsv(229, 68%, 69%)
CMYK	cmyk(67.8%, 54.8%, 0%, 30.6%)
CIE-LAB	lab(37.45, 23.83, -54.38)
CIE-LCH	lch(37.45, 59.37, 293.66°)
OKLab	oklab(46.97% -0.0016 -0.1564)
OKLCH	oklch(46.97% 0.156 269.4)
XYZ	xyz(12.4891, 9.7803, 42.8161)
Luminance	0.0978 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3950B1 #B19A39

analogous

#398CB1 #3950B1 #5E39B1

triadic

#3950B1 #B13950 #50B139

tetradic

#3950B1 #B1398C #B19A39 #39B15E

square

#3950B1 #B1398C #B19A39 #39B15E

split-complementary

#3950B1 #B15E39 #8CB139

monochromatic

#1B2654 #2A3B83 #3950B1 #5D72CB #8B9ADA

Accessibility & contrast

On white

7.10

#3950B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#3950B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3950B1

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3950B1	#FFFFFF	#000000	##FFFFFF
##3950B1	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#025EB4

Deuteranopia (green-blind)

#0053AF

Tritanopia (blue-blind)

#006778

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3950b1;
/* rgb */ color: rgb(57, 80, 177);
/* oklch */ color: oklch(47.0% 0.156 269.4);

Tailwind

colors: {
  custom: {
    50: '#7d80c9',
    500: '#3950b1',
    950: '#000000',
  },
}

SCSS

$custom: #3950b1;
$custom-light: #7d80c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3950b1",
  "rgb": {
    "r": 57,
    "g": 80,
    "b": 177
  },
  "hsl": {
    "h": 228.5,
    "s": 51.282,
    "l": 45.882
  },
  "oklch": {
    "l": 0.46971,
    "c": 0.15638,
    "h": 269.4
  },
  "luminance": 0.09782
}

Semantic roles & 50–950 ramp

primary

#3950B1

secondary

#C4B782

accent

#C04DDB

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3950B1

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

Preview Lab → · Contrast checker → · Palette generator →