#3A78D9#3A78D9

#3A78D9 is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.2% C 0.162 H 259.1°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3A78D9
RGB	rgb(58, 120, 217)
HSL	hsl(217, 68%, 54%)
HSV	hsv(217, 73%, 85%)
CMYK	cmyk(73.3%, 44.7%, 0%, 14.9%)
CIE-LAB	lab(51.08, 13.03, -55.51)
CIE-LCH	lch(51.08, 57.02, 283.21°)
OKLab	oklab(58.23% -0.0305 -0.159)
OKLCH	oklch(58.23% 0.162 259.1)
XYZ	xyz(20.9812, 19.3399, 68.2594)
Luminance	0.1934 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A78D9 #D99B3A

analogous

#3AC8D9 #3A78D9 #4C3AD9

triadic

#3A78D9 #D93A78 #78D93A

tetradic

#3A78D9 #D93AC8 #D99B3A #3AD94C

square

#3A78D9 #D93AC8 #D99B3A #3AD94C

split-complementary

#3A78D9 #D94C3A #C8D93A

monochromatic

#194180 #235BB3 #3A78D9 #6D9BE3 #A1BEED

Accessibility & contrast

On white

4.31

#3A78D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#3A78D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A78D9

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A78D9	#FFFFFF	#000000	##000000
##3A78D9	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4681DD

Deuteranopia (green-blind)

#2673D7

Tritanopia (blue-blind)

#008F9E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3a78d9;
/* rgb */ color: rgb(58, 120, 217);
/* oklch */ color: oklch(58.2% 0.162 259.1);

Tailwind

colors: {
  custom: {
    50: '#849ee5',
    500: '#3a78d9',
    950: '#000000',
  },
}

SCSS

$custom: #3a78d9;
$custom-light: #849ee5;
$custom-dark: #000000;

JSON

{
  "hex": "#3a78d9",
  "rgb": {
    "r": 58,
    "g": 120,
    "b": 217
  },
  "hsl": {
    "h": 216.604,
    "s": 67.66,
    "l": 53.922
  },
  "oklch": {
    "l": 0.58227,
    "c": 0.16193,
    "h": 259.1
  },
  "luminance": 0.19342
}

Semantic roles & 50–950 ramp

primary

#3A78D9

secondary

#D9BF95

accent

#A73DEB

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3A78D9

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

Preview Lab → · Contrast checker → · Palette generator →