#3C78BB#3C78BB

#3C78BB is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.5% C 0.122 H 253.0°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3C78BB
RGB	rgb(60, 120, 187)
HSL	hsl(212, 51%, 48%)
HSV	hsv(212, 68%, 73%)
CMYK	cmyk(67.9%, 35.8%, 0%, 26.7%)
CIE-LAB	lab(49.47, 2.49, -40.95)
CIE-LCH	lch(49.47, 41.03, 273.49°)
OKLab	oklab(56.45% -0.0357 -0.1163)
OKLCH	oklch(56.45% 0.122 253)
XYZ	xyz(17.5463, 17.9796, 49.5498)
Luminance	0.1798 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C78BB #BB7F3C

analogous

#3CB7BB #3C78BB #403CBB

triadic

#3C78BB #BB3C78 #78BB3C

tetradic

#3C78BB #BB3CB7 #BB7F3C #3CBB40

square

#3C78BB #BB3CB7 #BB7F3C #3CBB40

split-complementary

#3C78BB #BB403C #B7BB3C

monochromatic

#1E3D5E #2D5A8D #3C78BB #6697CE #95B7DD

Accessibility & contrast

On white

4.57

#3C78BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3C78BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C78BB

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C78BB	#FFFFFF	#000000	##000000
##3C78BB	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7CBE

Deuteranopia (green-blind)

#4870BA

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3c78bb;
/* rgb */ color: rgb(60, 120, 187);
/* oklch */ color: oklch(56.5% 0.122 253.0);

Tailwind

colors: {
  custom: {
    50: '#7f9ed0',
    500: '#3c78bb',
    950: '#000000',
  },
}

SCSS

$custom: #3c78bb;
$custom-light: #7f9ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3c78bb",
  "rgb": {
    "r": 60,
    "g": 120,
    "b": 187
  },
  "hsl": {
    "h": 211.654,
    "s": 51.417,
    "l": 48.431
  },
  "oklch": {
    "l": 0.5645,
    "c": 0.12163,
    "h": 253
  },
  "luminance": 0.17981
}

Semantic roles & 50–950 ramp

primary

#3C78BB

secondary

#C8AB8B

accent

#984DDB

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3C78BB

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

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