#3987AA#3987AA

#3987AA is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 59.0% C 0.093 H 230.6°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#3987AA
RGB	rgb(57, 135, 170)
HSL	hsl(199, 50%, 45%)
HSV	hsv(199, 66%, 67%)
CMYK	cmyk(66.5%, 20.6%, 0%, 33.3%)
CIE-LAB	lab(53.06, -12.65, -25.56)
CIE-LCH	lch(53.06, 28.51, 243.67°)
OKLab	oklab(58.99% -0.0587 -0.0716)
OKLCH	oklch(58.99% 0.093 230.6)
XYZ	xyz(17.6042, 21.0982, 41.1670)
Luminance	0.2110 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987AA #AA5C39

analogous

#39AA95 #3987AA #394FAA

triadic

#3987AA #AA3987 #87AA39

tetradic

#3987AA #9539AA #AA5C39 #4FAA39

square

#3987AA #9539AA #AA5C39 #4FAA39

split-complementary

#3987AA #AA394F #AA9539

monochromatic

#1A3E4E #2A637C #3987AA #59A5C7 #87BED7

Accessibility & contrast

On white

4.02

#3987AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#3987AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987AA

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987AA	#FFFFFF	#000000	##000000
##3987AA	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7585AC

Deuteranopia (green-blind)

#667AAA

Tritanopia (blue-blind)

#009193

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3987aa;
/* rgb */ color: rgb(57, 135, 170);
/* oklch */ color: oklch(59.0% 0.093 230.6);

Tailwind

colors: {
  custom: {
    50: '#7caac3',
    500: '#3987aa',
    950: '#000000',
  },
}

SCSS

$custom: #3987aa;
$custom-light: #7caac3;
$custom-dark: #000000;

JSON

{
  "hex": "#3987aa",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 170
  },
  "hsl": {
    "h": 198.584,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.58994,
    "c": 0.09256,
    "h": 230.6
  },
  "luminance": 0.211
}

Semantic roles & 50–950 ramp

primary

#3987AA

secondary

#C1937E

accent

#794ED9

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #3987AA

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

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