#3787E5#3787E5

#3787E5 is a light, vivid cyan. Relative luminance 0.238; OKLCH L 62.1% C 0.162 H 254.7°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3787E5
RGB	rgb(55, 135, 229)
HSL	hsl(212, 77%, 56%)
HSV	hsv(212, 76%, 90%)
CMYK	cmyk(76%, 41%, 0%, 10.2%)
CIE-LAB	lab(55.88, 7.84, -54.58)
CIE-LCH	lch(55.88, 55.14, 278.18°)
OKLab	oklab(62.15% -0.0427 -0.1561)
OKLCH	oklch(62.15% 0.162 254.7)
XYZ	xyz(24.3771, 23.7945, 77.4216)
Luminance	0.2380 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787E5 #E59537

analogous

#37DEE5 #3787E5 #3E37E5

triadic

#3787E5 #E53787 #87E537

tetradic

#3787E5 #E537DE #E59537 #37E53E

square

#3787E5 #E537DE #E59537 #37E53E

split-complementary

#3787E5 #E53E37 #DEE537

monochromatic

#134C8F #1A68C5 #3787E5 #6DA7EC #A3C8F3

Accessibility & contrast

On white

3.65

#3787E5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#3787E5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787E5

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787E5	#FFFFFF	#000000	##000000
##3787E5	1.00	3.65	5.76	5.76
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#598FE9

Deuteranopia (green-blind)

#3B7FE3

Tritanopia (blue-blind)

#009DAB

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3787e5;
/* rgb */ color: rgb(55, 135, 229);
/* oklch */ color: oklch(62.1% 0.162 254.7);

Tailwind

colors: {
  custom: {
    50: '#85a9ee',
    500: '#3787e5',
    950: '#000000',
  },
}

SCSS

$custom: #3787e5;
$custom-light: #85a9ee;
$custom-dark: #000000;

JSON

{
  "hex": "#3787e5",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 229
  },
  "hsl": {
    "h": 212.414,
    "s": 76.991,
    "l": 55.686
  },
  "oklch": {
    "l": 0.62145,
    "c": 0.16181,
    "h": 254.7
  },
  "luminance": 0.23797
}

Semantic roles & 50–950 ramp

primary

#3787E5

secondary

#E0BF98

accent

#9C34F4

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #3787E5

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

Preview Lab → · Contrast checker → · Palette generator →