#3C78AB#3C78AB

#3C78AB is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.6% C 0.101 H 246.6°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3C78AB
RGB	rgb(60, 120, 171)
HSL	hsl(208, 48%, 45%)
HSV	hsv(208, 65%, 67%)
CMYK	cmyk(64.9%, 29.8%, 0%, 32.9%)
CIE-LAB	lab(48.68, -3.11, -32.94)
CIE-LCH	lch(48.68, 33.09, 264.60°)
OKLab	oklab(55.57% -0.0402 -0.0929)
OKLCH	oklch(55.57% 0.101 246.6)
XYZ	xyz(15.9279, 17.3323, 41.0262)
Luminance	0.1733 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C78AB #AB6F3C

analogous

#3CABA7 #3C78AB #3C40AB

triadic

#3C78AB #AB3C78 #78AB3C

tetradic

#3C78AB #A73CAB #AB6F3C #40AB3C

square

#3C78AB #A73CAB #AB6F3C #40AB3C

split-complementary

#3C78AB #AB3C40 #ABA73C

monochromatic

#1C3850 #2C587E #3C78AB #5E96C6 #8BB4D6

Accessibility & contrast

On white

4.70

#3C78AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3C78AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3C78AB

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C78AB	#FFFFFF	#000000	##FFFFFF
##3C78AB	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627AAD

Deuteranopia (green-blind)

#526FAA

Tritanopia (blue-blind)

#00848A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3c78ab;
/* rgb */ color: rgb(60, 120, 171);
/* oklch */ color: oklch(55.6% 0.101 246.6);

Tailwind

colors: {
  custom: {
    50: '#7d9ec4',
    500: '#3c78ab',
    950: '#000000',
  },
}

SCSS

$custom: #3c78ab;
$custom-light: #7d9ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#3c78ab",
  "rgb": {
    "r": 60,
    "g": 120,
    "b": 171
  },
  "hsl": {
    "h": 207.568,
    "s": 48.052,
    "l": 45.294
  },
  "oklch": {
    "l": 0.55565,
    "c": 0.10129,
    "h": 246.6
  },
  "luminance": 0.17334
}

Semantic roles & 50–950 ramp

primary

#3C78AB

secondary

#C19F82

accent

#8E50D8

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #3C78AB

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

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