#3987C5#3987C5

#3987C5 is a mid, vivid cyan. Relative luminance 0.222; OKLCH L 60.4% C 0.121 H 245.8°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#3987C5
RGB	rgb(57, 135, 197)
HSL	hsl(207, 55%, 50%)
HSV	hsv(207, 71%, 77%)
CMYK	cmyk(71.1%, 31.5%, 0%, 22.7%)
CIE-LAB	lab(54.27, -3.38, -39.12)
CIE-LCH	lch(54.27, 39.26, 265.05°)
OKLab	oklab(60.35% -0.0497 -0.1108)
OKLCH	oklch(60.35% 0.121 245.8)
XYZ	xyz(20.4255, 22.2268, 56.0262)
Luminance	0.2223 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987C5 #C57739

analogous

#39C5BD #3987C5 #3941C5

triadic

#3987C5 #C53987 #87C539

tetradic

#3987C5 #BD39C5 #C57739 #41C539

square

#3987C5 #BD39C5 #C57739 #41C539

split-complementary

#3987C5 #C53941 #C5BD39

monochromatic

#1E4666 #2B6696 #3987C5 #68A4D3 #97C0E1

Accessibility & contrast

On white

3.86

#3987C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#3987C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987C5

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987C5	#FFFFFF	#000000	##000000
##3987C5	1.00	3.86	5.45	5.45
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B89C8

Deuteranopia (green-blind)

#577CC4

Tritanopia (blue-blind)

#00969D

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3987c5;
/* rgb */ color: rgb(57, 135, 197);
/* oklch */ color: oklch(60.4% 0.121 245.8);

Tailwind

colors: {
  custom: {
    50: '#80a9d7',
    500: '#3987c5',
    950: '#000000',
  },
}

SCSS

$custom: #3987c5;
$custom-light: #80a9d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3987c5",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 197
  },
  "hsl": {
    "h": 206.571,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.60351,
    "c": 0.12141,
    "h": 245.8
  },
  "luminance": 0.22229
}

Semantic roles & 50–950 ramp

primary

#3987C5

secondary

#CDA98D

accent

#8B49DE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3987C5

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

Preview Lab → · Contrast checker → · Palette generator →