#3950B0#3950B0

#3950B0 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.9% C 0.155 H 269.4°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#3950B0
RGB	rgb(57, 80, 176)
HSL	hsl(228, 51%, 46%)
HSV	hsv(228, 68%, 69%)
CMYK	cmyk(67.6%, 54.5%, 0%, 31%)
CIE-LAB	lab(37.37, 23.46, -53.90)
CIE-LCH	lch(37.37, 58.79, 293.52°)
OKLab	oklab(46.89% -0.0016 -0.155)
OKLCH	oklch(46.89% 0.155 269.4)
XYZ	xyz(12.3898, 9.7406, 42.2931)
Luminance	0.0974 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3950B0 #B09939

analogous

#398BB0 #3950B0 #5D39B0

triadic

#3950B0 #B03950 #50B039

tetradic

#3950B0 #B0398B #B09939 #39B05D

square

#3950B0 #B0398B #B09939 #39B05D

split-complementary

#3950B0 #B05D39 #8BB039

monochromatic

#1B2654 #2A3B82 #3950B0 #5C71CA #8A99D9

Accessibility & contrast

On white

7.12

#3950B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#3950B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3950B0

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3950B0	#FFFFFF	#000000	##FFFFFF
##3950B0	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#065EB3

Deuteranopia (green-blind)

#0053AE

Tritanopia (blue-blind)

#006778

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3950b0;
/* rgb */ color: rgb(57, 80, 176);
/* oklch */ color: oklch(46.9% 0.155 269.4);

Tailwind

colors: {
  custom: {
    50: '#7d80c8',
    500: '#3950b0',
    950: '#000000',
  },
}

SCSS

$custom: #3950b0;
$custom-light: #7d80c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3950b0",
  "rgb": {
    "r": 57,
    "g": 80,
    "b": 176
  },
  "hsl": {
    "h": 228.403,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.46893,
    "c": 0.15498,
    "h": 269.4
  },
  "luminance": 0.09742
}

Semantic roles & 50–950 ramp

primary

#3950B0

secondary

#C4B781

accent

#BF4DDB

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3950B0

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

Preview Lab → · Contrast checker → · Palette generator →