#3787DA#3787DA

#3787DA is a mid, vivid cyan. Relative luminance 0.232; OKLCH L 61.5% C 0.148 H 252.2°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#3787DA
RGB	rgb(55, 135, 218)
HSL	hsl(211, 69%, 54%)
HSV	hsv(211, 75%, 85%)
CMYK	cmyk(74.8%, 38.1%, 0%, 14.5%)
CIE-LAB	lab(55.28, 3.85, -49.38)
CIE-LCH	lch(55.28, 49.53, 274.46°)
OKLab	oklab(61.48% -0.0452 -0.1408)
OKLCH	oklch(61.48% 0.148 252.2)
XYZ	xyz(22.8897, 23.1995, 69.5877)
Luminance	0.2320 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787DA #DA8A37

analogous

#37D8DA #3787DA #3837DA

triadic

#3787DA #DA3787 #87DA37

tetradic

#3787DA #DA37D8 #DA8A37 #37DA38

square

#3787DA #DA37D8 #DA8A37 #37DA38

split-complementary

#3787DA #DA3837 #D8DA37

monochromatic

#184A7F #2169B3 #3787DA #6BA6E4 #9EC5ED

Accessibility & contrast

On white

3.72

#3787DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#3787DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787DA

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787DA	#FFFFFF	#000000	##000000
##3787DA	1.00	3.72	5.64	5.64
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.64	21.00	1.00	1.00
##000000	5.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#608DDD

Deuteranopia (green-blind)

#477ED8

Tritanopia (blue-blind)

#009BA6

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3787da;
/* rgb */ color: rgb(55, 135, 218);
/* oklch */ color: oklch(61.5% 0.148 252.2);

Tailwind

colors: {
  custom: {
    50: '#83a9e6',
    500: '#3787da',
    950: '#000000',
  },
}

SCSS

$custom: #3787da;
$custom-light: #83a9e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3787da",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 218
  },
  "hsl": {
    "h": 210.552,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.61477,
    "c": 0.1479,
    "h": 252.2
  },
  "luminance": 0.23202
}

Semantic roles & 50–950 ramp

primary

#3787DA

secondary

#D9B793

accent

#963CEC

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #3787DA

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

Preview Lab → · Contrast checker → · Palette generator →