#3987C7#3987C7

#3987C7 is a mid, vivid cyan. Relative luminance 0.223; OKLCH L 60.5% C 0.124 H 246.6°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#3987C7
RGB	rgb(57, 135, 199)
HSL	hsl(207, 56%, 50%)
HSV	hsv(207, 71%, 78%)
CMYK	cmyk(71.4%, 32.2%, 0%, 22%)
CIE-LAB	lab(54.36, -2.68, -40.10)
CIE-LCH	lch(54.36, 40.19, 266.18°)
OKLab	oklab(60.46% -0.0491 -0.1136)
OKLCH	oklch(60.46% 0.124 246.6)
XYZ	xyz(20.6562, 22.3190, 57.2411)
Luminance	0.2232 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987C7 #C77939

analogous

#39C7C0 #3987C7 #3940C7

triadic

#3987C7 #C73987 #87C739

tetradic

#3987C7 #C039C7 #C77939 #40C739

square

#3987C7 #C039C7 #C77939 #40C739

split-complementary

#3987C7 #C73940 #C7C039

monochromatic

#1D4668 #2B6798 #3987C7 #69A4D4 #98C1E2

Accessibility & contrast

On white

3.84

#3987C7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#3987C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987C7

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987C7	#FFFFFF	#000000	##000000
##3987C7	1.00	3.84	5.46	5.46
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A89CA

Deuteranopia (green-blind)

#567CC6

Tritanopia (blue-blind)

#00969E

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3987c7;
/* rgb */ color: rgb(57, 135, 199);
/* oklch */ color: oklch(60.5% 0.124 246.6);

Tailwind

colors: {
  custom: {
    50: '#80a9d8',
    500: '#3987c7',
    950: '#000000',
  },
}

SCSS

$custom: #3987c7;
$custom-light: #80a9d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3987c7",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 199
  },
  "hsl": {
    "h": 207.042,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.6046,
    "c": 0.1238,
    "h": 246.6
  },
  "luminance": 0.22321
}

Semantic roles & 50–950 ramp

primary

#3987C7

secondary

#CEAB8E

accent

#8C49DF

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #3987C7

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

Preview Lab → · Contrast checker → · Palette generator →