#3987C4#3987C4

#3987C4 is a mid, vivid cyan. Relative luminance 0.222; OKLCH L 60.3% C 0.120 H 245.4°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#3987C4
RGB	rgb(57, 135, 196)
HSL	hsl(206, 55%, 50%)
HSV	hsv(206, 71%, 77%)
CMYK	cmyk(70.9%, 31.1%, 0%, 23.1%)
CIE-LAB	lab(54.22, -3.74, -38.62)
CIE-LCH	lch(54.22, 38.80, 264.47°)
OKLab	oklab(60.3% -0.05 -0.1093)
OKLCH	oklch(60.3% 0.12 245.4)
XYZ	xyz(20.3113, 22.1811, 55.4248)
Luminance	0.2218 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987C4 #C47639

analogous

#39C4BC #3987C4 #3941C4

triadic

#3987C4 #C43987 #87C439

tetradic

#3987C4 #BC39C4 #C47639 #41C439

square

#3987C4 #BC39C4 #C47639 #41C439

split-complementary

#3987C4 #C43941 #C4BC39

monochromatic

#1D4665 #2B6695 #3987C4 #67A4D3 #97C0E1

Accessibility & contrast

On white

3.86

#3987C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#3987C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987C4

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987C4	#FFFFFF	#000000	##000000
##3987C4	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B89C7

Deuteranopia (green-blind)

#587CC3

Tritanopia (blue-blind)

#00969D

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3987c4;
/* rgb */ color: rgb(57, 135, 196);
/* oklch */ color: oklch(60.3% 0.120 245.4);

Tailwind

colors: {
  custom: {
    50: '#80a9d6',
    500: '#3987c4',
    950: '#000000',
  },
}

SCSS

$custom: #3987c4;
$custom-light: #80a9d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3987c4",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 196
  },
  "hsl": {
    "h": 206.331,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.60298,
    "c": 0.12023,
    "h": 245.4
  },
  "luminance": 0.22183
}

Semantic roles & 50–950 ramp

primary

#3987C4

secondary

#CCA98D

accent

#8B4ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3987C4

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

Preview Lab → · Contrast checker → · Palette generator →