#3963A8#3963A8

#3963A8 is a mid, moderate blue. Relative luminance 0.126; OKLCH L 50.4% C 0.120 H 259.8°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#3963A8
RGB	rgb(57, 99, 168)
HSL	hsl(217, 49%, 44%)
HSV	hsv(217, 66%, 66%)
CMYK	cmyk(66.1%, 41.1%, 0%, 34.1%)
CIE-LAB	lab(42.18, 8.23, -41.45)
CIE-LCH	lch(42.18, 42.26, 281.23°)
OKLab	oklab(50.4% -0.0212 -0.1181)
OKLCH	oklch(50.4% 0.12 259.8)
XYZ	xyz(13.2146, 12.6194, 38.7776)
Luminance	0.1262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963A8 #A87E39

analogous

#399BA8 #3963A8 #4739A8

triadic

#3963A8 #A83963 #63A839

tetradic

#3963A8 #A8399B #A87E39 #39A847

square

#3963A8 #A8399B #A87E39 #39A847

split-complementary

#3963A8 #A84739 #9BA839

monochromatic

#1A2D4D #29487A #3963A8 #5882C6 #86A4D6

Accessibility & contrast

On white

5.96

#3963A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#3963A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963A8

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963A8	#FFFFFF	#000000	##FFFFFF
##3963A8	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4469AB

Deuteranopia (green-blind)

#335FA7

Tritanopia (blue-blind)

#00737D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3963a8;
/* rgb */ color: rgb(57, 99, 168);
/* oklch */ color: oklch(50.4% 0.120 259.8);

Tailwind

colors: {
  custom: {
    50: '#7b8fc2',
    500: '#3963a8',
    950: '#000000',
  },
}

SCSS

$custom: #3963a8;
$custom-light: #7b8fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#3963a8",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 168
  },
  "hsl": {
    "h": 217.297,
    "s": 49.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50404,
    "c": 0.11996,
    "h": 259.8
  },
  "luminance": 0.12621
}

Semantic roles & 50–950 ramp

primary

#3963A8

secondary

#C0A77D

accent

#A54FD9

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3963A8

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

Preview Lab → · Contrast checker → · Palette generator →