#3878AA#3878AA

#3878AA is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.4% C 0.102 H 244.8°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3878AA
RGB	rgb(56, 120, 170)
HSL	hsl(206, 50%, 44%)
HSV	hsv(206, 67%, 67%)
CMYK	cmyk(67.1%, 29.4%, 0%, 33.3%)
CIE-LAB	lab(48.48, -4.17, -32.68)
CIE-LCH	lch(48.48, 32.95, 262.73°)
OKLab	oklab(55.35% -0.0434 -0.0922)
OKLCH	oklch(55.35% 0.102 244.8)
XYZ	xyz(15.6003, 17.1744, 40.5152)
Luminance	0.1718 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878AA #AA6A38

analogous

#38AAA3 #3878AA #383FAA

triadic

#3878AA #AA3878 #78AA38

tetradic

#3878AA #A338AA #AA6A38 #3FAA38

square

#3878AA #A338AA #AA6A38 #3FAA38

split-complementary

#3878AA #AA383F #AAA338

monochromatic

#1A374E #29587C #3878AA #5797C8 #85B3D7

Accessibility & contrast

On white

4.73

#3878AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3878AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3878AA

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878AA	#FFFFFF	#000000	##FFFFFF
##3878AA	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6279AC

Deuteranopia (green-blind)

#526EA9

Tritanopia (blue-blind)

#00848A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3878aa;
/* rgb */ color: rgb(56, 120, 170);
/* oklch */ color: oklch(55.4% 0.102 244.8);

Tailwind

colors: {
  custom: {
    50: '#7b9ec3',
    500: '#3878aa',
    950: '#000000',
  },
}

SCSS

$custom: #3878aa;
$custom-light: #7b9ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#3878aa",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 170
  },
  "hsl": {
    "h": 206.316,
    "s": 50.442,
    "l": 44.314
  },
  "oklch": {
    "l": 0.55352,
    "c": 0.10194,
    "h": 244.8
  },
  "luminance": 0.17176
}

Semantic roles & 50–950 ramp

primary

#3878AA

secondary

#C19B7D

accent

#8B4EDA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3878AA

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

Preview Lab → · Contrast checker → · Palette generator →