#3A78C5#3A78C5

#3A78C5 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 57.0% C 0.136 H 255.2°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3A78C5
RGB	rgb(58, 120, 197)
HSL	hsl(213, 55%, 50%)
HSV	hsv(213, 71%, 77%)
CMYK	cmyk(70.6%, 39.1%, 0%, 22.7%)
CIE-LAB	lab(49.93, 5.76, -45.97)
CIE-LCH	lch(49.93, 46.33, 277.15°)
OKLab	oklab(56.96% -0.0346 -0.131)
OKLCH	oklch(56.96% 0.136 255.2)
XYZ	xyz(18.5357, 18.3617, 55.3798)
Luminance	0.1836 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A78C5 #C5873A

analogous

#3ABEC5 #3A78C5 #413AC5

triadic

#3A78C5 #C53A78 #78C53A

tetradic

#3A78C5 #C53ABE #C5873A #3AC541

square

#3A78C5 #C53ABE #C5873A #3AC541

split-complementary

#3A78C5 #C5413A #BEC53A

monochromatic

#1E3E66 #2C5B96 #3A78C5 #6998D3 #99B9E1

Accessibility & contrast

On white

4.49

#3A78C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.67

#3A78C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A78C5

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A78C5	#FFFFFF	#000000	##000000
##3A78C5	1.00	4.49	4.67	4.67
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#557EC8

Deuteranopia (green-blind)

#3F71C3

Tritanopia (blue-blind)

#008A95

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3a78c5;
/* rgb */ color: rgb(58, 120, 197);
/* oklch */ color: oklch(57.0% 0.136 255.2);

Tailwind

colors: {
  custom: {
    50: '#809ed7',
    500: '#3a78c5',
    950: '#000000',
  },
}

SCSS

$custom: #3a78c5;
$custom-light: #809ed7;
$custom-dark: #000000;

JSON

{
  "hex": "#3a78c5",
  "rgb": {
    "r": 58,
    "g": 120,
    "b": 197
  },
  "hsl": {
    "h": 213.237,
    "s": 54.51,
    "l": 50
  },
  "oklch": {
    "l": 0.56963,
    "c": 0.1355,
    "h": 255.2
  },
  "luminance": 0.18364
}

Semantic roles & 50–950 ramp

primary

#3A78C5

secondary

#CDB18E

accent

#9C4ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3A78C5

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

Preview Lab → · Contrast checker → · Palette generator →