#3963A9#3963A9

#3963A9 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 50.5% C 0.121 H 260.0°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3963A9
RGB	rgb(57, 99, 169)
HSL	hsl(218, 50%, 44%)
HSV	hsv(218, 66%, 66%)
CMYK	cmyk(66.3%, 41.4%, 0%, 33.7%)
CIE-LAB	lab(42.24, 8.59, -41.95)
CIE-LCH	lch(42.24, 42.82, 281.58°)
OKLab	oklab(50.47% -0.021 -0.1195)
OKLCH	oklch(50.47% 0.121 260)
XYZ	xyz(13.3081, 12.6568, 39.2701)
Luminance	0.1266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963A9 #A97F39

analogous

#399BA9 #3963A9 #4739A9

triadic

#3963A9 #A93963 #63A939

tetradic

#3963A9 #A9399B #A97F39 #39A947

square

#3963A9 #A9399B #A97F39 #39A947

split-complementary

#3963A9 #A94739 #9BA939

monochromatic

#1A2D4D #2A487B #3963A9 #5882C7 #86A4D6

Accessibility & contrast

On white

5.95

#3963A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#3963A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963A9

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963A9	#FFFFFF	#000000	##FFFFFF
##3963A9	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4369AC

Deuteranopia (green-blind)

#325FA8

Tritanopia (blue-blind)

#00737E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3963a9;
/* rgb */ color: rgb(57, 99, 169);
/* oklch */ color: oklch(50.5% 0.121 260.0);

Tailwind

colors: {
  custom: {
    50: '#7b8fc3',
    500: '#3963a9',
    950: '#000000',
  },
}

SCSS

$custom: #3963a9;
$custom-light: #7b8fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#3963a9",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 169
  },
  "hsl": {
    "h": 217.5,
    "s": 49.558,
    "l": 44.314
  },
  "oklch": {
    "l": 0.50468,
    "c": 0.12136,
    "h": 260
  },
  "luminance": 0.12658
}

Semantic roles & 50–950 ramp

primary

#3963A9

secondary

#C0A77E

accent

#A54FD9

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3963A9

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

Preview Lab → · Contrast checker → · Palette generator →