#3F88DB#3F88DB

#3F88DB is a light, vivid cyan. Relative luminance 0.238; OKLCH L 62.0% C 0.145 H 253.6°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F88DB
RGB	rgb(63, 136, 219)
HSL	hsl(212, 68%, 55%)
HSV	hsv(212, 71%, 86%)
CMYK	cmyk(71.2%, 37.9%, 0%, 14.1%)
CIE-LAB	lab(55.86, 4.66, -49.00)
CIE-LCH	lch(55.86, 49.22, 275.44°)
OKLab	oklab(62.02% -0.041 -0.1396)
OKLCH	oklch(62.02% 0.145 253.6)
XYZ	xyz(23.6355, 23.7770, 70.3479)
Luminance	0.2378 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F88DB #DB923F

analogous

#3FD6DB #3F88DB #443FDB

triadic

#3F88DB #DB3F88 #88DB3F

tetradic

#3F88DB #DB3FD6 #DB923F #3FDB44

square

#3F88DB #DB3FD6 #DB923F #3FDB44

split-complementary

#3F88DB #DB443F #D6DB3F

monochromatic

#194C86 #236ABA #3F88DB #73A8E5 #A6C8EE

Accessibility & contrast

On white

3.65

#3F88DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#3F88DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F88DB

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F88DB	#FFFFFF	#000000	##000000
##3F88DB	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)

#628EDE

Deuteranopia (green-blind)

#4A7FD9

Tritanopia (blue-blind)

#009BA7

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3f88db;
/* rgb */ color: rgb(63, 136, 219);
/* oklch */ color: oklch(62.0% 0.145 253.6);

Tailwind

colors: {
  custom: {
    50: '#86aae6',
    500: '#3f88db',
    950: '#000000',
  },
}

SCSS

$custom: #3f88db;
$custom-light: #86aae6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f88db",
  "rgb": {
    "r": 63,
    "g": 136,
    "b": 219
  },
  "hsl": {
    "h": 211.923,
    "s": 68.421,
    "l": 55.294
  },
  "oklch": {
    "l": 0.62023,
    "c": 0.14547,
    "h": 253.6
  },
  "luminance": 0.2378
}

Semantic roles & 50–950 ramp

primary

#3F88DB

secondary

#DCBD9A

accent

#9A3DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #3F88DB

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

Preview Lab → · Contrast checker → · Palette generator →