#3955B7#3955B7

#3955B7 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.4% C 0.158 H 268.0°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#3955B7
RGB	rgb(57, 85, 183)
HSL	hsl(227, 53%, 47%)
HSV	hsv(227, 69%, 72%)
CMYK	cmyk(68.9%, 53.6%, 0%, 28.2%)
CIE-LAB	lab(39.21, 22.75, -55.05)
CIE-LCH	lch(39.21, 59.57, 292.46°)
OKLab	oklab(48.44% -0.0055 -0.1583)
OKLCH	oklch(48.44% 0.158 268)
XYZ	xyz(13.4801, 10.7844, 46.1618)
Luminance	0.1079 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3955B7 #B79B39

analogous

#3994B7 #3955B7 #5C39B7

triadic

#3955B7 #B73955 #55B739

tetradic

#3955B7 #B73994 #B79B39 #39B75C

square

#3955B7 #B73994 #B79B39 #39B75C

split-complementary

#3955B7 #B75C39 #94B739

monochromatic

#1C2A5A #2A3F88 #3955B7 #6078CD #8EA0DC

Accessibility & contrast

On white

6.65

#3955B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3955B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3955B7

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3955B7	#FFFFFF	#000000	##FFFFFF
##3955B7	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F62BA

Deuteranopia (green-blind)

#0057B5

Tritanopia (blue-blind)

#006C7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3955b7;
/* rgb */ color: rgb(57, 85, 183);
/* oklch */ color: oklch(48.4% 0.158 268.0);

Tailwind

colors: {
  custom: {
    50: '#7e84cd',
    500: '#3955b7',
    950: '#000000',
  },
}

SCSS

$custom: #3955b7;
$custom-light: #7e84cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3955b7",
  "rgb": {
    "r": 57,
    "g": 85,
    "b": 183
  },
  "hsl": {
    "h": 226.667,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.48441,
    "c": 0.15837,
    "h": 268
  },
  "luminance": 0.10786
}

Semantic roles & 50–950 ramp

primary

#3955B7

secondary

#C7B885

accent

#BC4CDC

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3955B7

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

Preview Lab → · Contrast checker → · Palette generator →