#3987C0#3987C0

#3987C0 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 60.1% C 0.116 H 243.7°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#3987C0
RGB	rgb(57, 135, 192)
HSL	hsl(205, 54%, 49%)
HSV	hsv(205, 70%, 75%)
CMYK	cmyk(70.3%, 29.7%, 0%, 24.7%)
CIE-LAB	lab(54.03, -5.14, -36.65)
CIE-LCH	lch(54.03, 37.00, 262.02°)
OKLab	oklab(60.09% -0.0512 -0.1036)
OKLCH	oklch(60.09% 0.116 243.7)
XYZ	xyz(19.8621, 22.0014, 53.0589)
Luminance	0.2200 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987C0 #C07239

analogous

#39C0B6 #3987C0 #3944C0

triadic

#3987C0 #C03987 #87C039

tetradic

#3987C0 #B639C0 #C07239 #44C039

square

#3987C0 #B639C0 #C07239 #44C039

split-complementary

#3987C0 #C03944 #C0B639

monochromatic

#1D4562 #2B6691 #3987C0 #65A4D1 #94C0DF

Accessibility & contrast

On white

3.89

#3987C0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#3987C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987C0

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987C0	#FFFFFF	#000000	##000000
##3987C0	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D88C3

Deuteranopia (green-blind)

#5A7BBF

Tritanopia (blue-blind)

#00959B

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3987c0;
/* rgb */ color: rgb(57, 135, 192);
/* oklch */ color: oklch(60.1% 0.116 243.7);

Tailwind

colors: {
  custom: {
    50: '#7fa9d3',
    500: '#3987c0',
    950: '#000000',
  },
}

SCSS

$custom: #3987c0;
$custom-light: #7fa9d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3987c0",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 192
  },
  "hsl": {
    "h": 205.333,
    "s": 54.217,
    "l": 48.824
  },
  "oklch": {
    "l": 0.60085,
    "c": 0.11556,
    "h": 243.7
  },
  "luminance": 0.22004
}

Semantic roles & 50–950 ramp

primary

#3987C0

secondary

#CBA58A

accent

#884ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3987C0

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

Preview Lab → · Contrast checker → · Palette generator →