#3F88DA#3F88DA

#3F88DA is a mid, vivid cyan. Relative luminance 0.237; OKLCH L 62.0% C 0.144 H 253.4°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#3F88DA
RGB	rgb(63, 136, 218)
HSL	hsl(212, 68%, 55%)
HSV	hsv(212, 71%, 85%)
CMYK	cmyk(71.1%, 37.6%, 0%, 14.5%)
CIE-LAB	lab(55.81, 4.31, -48.52)
CIE-LCH	lch(55.81, 48.71, 275.07°)
OKLab	oklab(61.96% -0.0412 -0.1382)
OKLCH	oklch(61.96% 0.144 253.4)
XYZ	xyz(23.5043, 23.7245, 69.6566)
Luminance	0.2373 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F88DA #DA913F

analogous

#3FD6DA #3F88DA #433FDA

triadic

#3F88DA #DA3F88 #88DA3F

tetradic

#3F88DA #DA3FD6 #DA913F #3FDA43

square

#3F88DA #DA3FD6 #DA913F #3FDA43

split-complementary

#3F88DA #DA433F #D6DA3F

monochromatic

#1A4C85 #246AB8 #3F88DA #72A8E4 #A6C8EE

Accessibility & contrast

On white

3.66

#3F88DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#3F88DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F88DA

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F88DA	#FFFFFF	#000000	##000000
##3F88DA	1.00	3.66	5.75	5.75
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#628EDD

Deuteranopia (green-blind)

#4B7FD8

Tritanopia (blue-blind)

#009BA6

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3f88da;
/* rgb */ color: rgb(63, 136, 218);
/* oklch */ color: oklch(62.0% 0.144 253.4);

Tailwind

colors: {
  custom: {
    50: '#86aae6',
    500: '#3f88da',
    950: '#000000',
  },
}

SCSS

$custom: #3f88da;
$custom-light: #86aae6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f88da",
  "rgb": {
    "r": 63,
    "g": 136,
    "b": 218
  },
  "hsl": {
    "h": 211.742,
    "s": 67.686,
    "l": 55.098
  },
  "oklch": {
    "l": 0.61964,
    "c": 0.14419,
    "h": 253.4
  },
  "luminance": 0.23727
}

Semantic roles & 50–950 ramp

primary

#3F88DA

secondary

#DBBC9A

accent

#993DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #3F88DA

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

Preview Lab → · Contrast checker → · Palette generator →