#3A78BB#3A78BB

#3A78BB is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.4% C 0.122 H 252.4°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#3A78BB
RGB	rgb(58, 120, 187)
HSL	hsl(211, 53%, 48%)
HSV	hsv(211, 69%, 73%)
CMYK	cmyk(69%, 35.8%, 0%, 26.7%)
CIE-LAB	lab(49.40, 2.17, -41.08)
CIE-LCH	lch(49.40, 41.13, 273.03°)
OKLab	oklab(56.37% -0.0371 -0.1167)
OKLCH	oklch(56.37% 0.122 252.4)
XYZ	xyz(17.4277, 17.9185, 49.5442)
Luminance	0.1792 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A78BB #BB7D3A

analogous

#3AB8BB #3A78BB #3D3ABB

triadic

#3A78BB #BB3A78 #78BB3A

tetradic

#3A78BB #BB3AB8 #BB7D3A #3ABB3D

square

#3A78BB #BB3AB8 #BB7D3A #3ABB3D

split-complementary

#3A78BB #BB3D3A #B8BB3A

monochromatic

#1D3C5E #2C5A8C #3A78BB #6397CF #92B6DD

Accessibility & contrast

On white

4.58

#3A78BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3A78BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A78BB

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A78BB	#FFFFFF	#000000	##000000
##3A78BB	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7CBE

Deuteranopia (green-blind)

#4870BA

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3a78bb;
/* rgb */ color: rgb(58, 120, 187);
/* oklch */ color: oklch(56.4% 0.122 252.4);

Tailwind

colors: {
  custom: {
    50: '#7f9ed0',
    500: '#3a78bb',
    950: '#000000',
  },
}

SCSS

$custom: #3a78bb;
$custom-light: #7f9ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3a78bb",
  "rgb": {
    "r": 58,
    "g": 120,
    "b": 187
  },
  "hsl": {
    "h": 211.163,
    "s": 52.653,
    "l": 48.039
  },
  "oklch": {
    "l": 0.56371,
    "c": 0.12243,
    "h": 252.4
  },
  "luminance": 0.1792
}

Semantic roles & 50–950 ramp

primary

#3A78BB

secondary

#C8AA88

accent

#974CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3A78BB

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

Preview Lab → · Contrast checker → · Palette generator →