#3987D5#3987D5

#3987D5 is a mid, vivid cyan. Relative luminance 0.230; OKLCH L 61.2% C 0.141 H 251.3°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#3987D5
RGB	rgb(57, 135, 213)
HSL	hsl(210, 65%, 53%)
HSV	hsv(210, 73%, 84%)
CMYK	cmyk(73.2%, 36.6%, 0%, 16.5%)
CIE-LAB	lab(55.07, 2.30, -46.89)
CIE-LCH	lch(55.07, 46.95, 272.81°)
OKLab	oklab(61.25% -0.0453 -0.1335)
OKLCH	oklch(61.25% 0.141 251.3)
XYZ	xyz(22.3570, 22.9994, 66.1989)
Luminance	0.2300 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987D5 #D58739

analogous

#39D5D5 #3987D5 #3939D5

triadic

#3987D5 #D53987 #87D539

tetradic

#3987D5 #D539D5 #D58739 #39D539

square

#3987D5 #D539D5 #D58739 #39D539

split-complementary

#3987D5 #D53939 #D5D539

monochromatic

#1A4A7A #2568AC #3987D5 #6BA6E0 #9EC4EA

Accessibility & contrast

On white

3.75

#3987D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#3987D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987D5

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987D5	#FFFFFF	#000000	##000000
##3987D5	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#638CD8

Deuteranopia (green-blind)

#4C7DD3

Tritanopia (blue-blind)

#0099A4

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3987d5;
/* rgb */ color: rgb(57, 135, 213);
/* oklch */ color: oklch(61.2% 0.141 251.3);

Tailwind

colors: {
  custom: {
    50: '#83a9e2',
    500: '#3987d5',
    950: '#000000',
  },
}

SCSS

$custom: #3987d5;
$custom-light: #83a9e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3987d5",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 213
  },
  "hsl": {
    "h": 210,
    "s": 65,
    "l": 52.941
  },
  "oklch": {
    "l": 0.61247,
    "c": 0.14098,
    "h": 251.3
  },
  "luminance": 0.23002
}

Semantic roles & 50–950 ramp

primary

#3987D5

secondary

#D7B593

accent

#9440E8

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3987D5

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

Preview Lab → · Contrast checker → · Palette generator →