#3987DA#3987DA

#3987DA is a mid, vivid cyan. Relative luminance 0.233; OKLCH L 61.5% C 0.147 H 252.6°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#3987DA
RGB	rgb(57, 135, 218)
HSL	hsl(211, 69%, 54%)
HSV	hsv(211, 74%, 85%)
CMYK	cmyk(73.9%, 38.1%, 0%, 14.5%)
CIE-LAB	lab(55.34, 4.10, -49.29)
CIE-LCH	lch(55.34, 49.46, 274.76°)
OKLab	oklab(61.54% -0.0441 -0.1405)
OKLCH	oklch(61.54% 0.147 252.6)
XYZ	xyz(23.0015, 23.2571, 69.5929)
Luminance	0.2326 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987DA #DA8C39

analogous

#39D7DA #3987DA #3C39DA

triadic

#3987DA #DA3987 #87DA39

tetradic

#3987DA #DA39D7 #DA8C39 #39DA3C

square

#3987DA #DA39D7 #DA8C39 #39DA3C

split-complementary

#3987DA #DA3C39 #D7DA39

monochromatic

#184B81 #2269B4 #3987DA #6DA6E4 #A0C6ED

Accessibility & contrast

On white

3.72

#3987DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#3987DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987DA

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987DA	#FFFFFF	#000000	##000000
##3987DA	1.00	3.72	5.65	5.65
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#608DDD

Deuteranopia (green-blind)

#477ED8

Tritanopia (blue-blind)

#009BA6

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3987da;
/* rgb */ color: rgb(57, 135, 218);
/* oklch */ color: oklch(61.5% 0.147 252.6);

Tailwind

colors: {
  custom: {
    50: '#84a9e6',
    500: '#3987da',
    950: '#000000',
  },
}

SCSS

$custom: #3987da;
$custom-light: #84a9e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3987da",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 218
  },
  "hsl": {
    "h": 210.932,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.6154,
    "c": 0.14726,
    "h": 252.6
  },
  "luminance": 0.2326
}

Semantic roles & 50–950 ramp

primary

#3987DA

secondary

#DAB895

accent

#973CEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #3987DA

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

Preview Lab → · Contrast checker → · Palette generator →