#3787D6#3787D6

#3787D6 is a mid, vivid cyan. Relative luminance 0.230; OKLCH L 61.2% C 0.143 H 251.1°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#3787D6
RGB	rgb(55, 135, 214)
HSL	hsl(210, 66%, 53%)
HSV	hsv(210, 74%, 84%)
CMYK	cmyk(74.3%, 36.9%, 0%, 16.1%)
CIE-LAB	lab(55.06, 2.41, -47.47)
CIE-LCH	lch(55.06, 47.53, 272.90°)
OKLab	oklab(61.24% -0.0462 -0.1352)
OKLCH	oklch(61.24% 0.143 251.1)
XYZ	xyz(22.3726, 22.9926, 66.8642)
Luminance	0.2299 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787D6 #D68637

analogous

#37D6D5 #3787D6 #3738D6

triadic

#3787D6 #D63787 #87D637

tetradic

#3787D6 #D537D6 #D68637 #38D637

square

#3787D6 #D537D6 #D68637 #38D637

split-complementary

#3787D6 #D63738 #D6D537

monochromatic

#194A7A #2368AC #3787D6 #6AA5E0 #9DC4EB

Accessibility & contrast

On white

3.75

#3787D6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#3787D6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787D6

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787D6	#FFFFFF	#000000	##000000
##3787D6	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)

#628CD9

Deuteranopia (green-blind)

#4A7DD4

Tritanopia (blue-blind)

#009AA4

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3787d6;
/* rgb */ color: rgb(55, 135, 214);
/* oklch */ color: oklch(61.2% 0.143 251.1);

Tailwind

colors: {
  custom: {
    50: '#82a9e3',
    500: '#3787d6',
    950: '#000000',
  },
}

SCSS

$custom: #3787d6;
$custom-light: #82a9e3;
$custom-dark: #000000;

JSON

{
  "hex": "#3787d6",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 214
  },
  "hsl": {
    "h": 209.811,
    "s": 65.975,
    "l": 52.745
  },
  "oklch": {
    "l": 0.61242,
    "c": 0.14289,
    "h": 251.1
  },
  "luminance": 0.22995
}

Semantic roles & 50–950 ramp

primary

#3787D6

secondary

#D7B492

accent

#933FE9

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3787D6

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

Preview Lab → · Contrast checker → · Palette generator →