#3F88D0#3F88D0

#3F88D0 is a mid, vivid cyan. Relative luminance 0.232; OKLCH L 61.4% C 0.132 H 250.6°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F88D0
RGB	rgb(63, 136, 208)
HSL	hsl(210, 61%, 53%)
HSV	hsv(210, 70%, 82%)
CMYK	cmyk(69.7%, 34.6%, 0%, 18.4%)
CIE-LAB	lab(55.30, 0.78, -43.71)
CIE-LCH	lch(55.30, 43.72, 271.02°)
OKLab	oklab(61.39% -0.0438 -0.1241)
OKLCH	oklch(61.39% 0.132 250.6)
XYZ	xyz(22.2350, 23.2168, 62.9717)
Luminance	0.2322 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F88D0 #D0873F

analogous

#3FD0CF #3F88D0 #3F3FD0

triadic

#3F88D0 #D03F88 #88D03F

tetradic

#3F88D0 #CF3FD0 #D0873F #3FD03F

square

#3F88D0 #CF3FD0 #D0873F #3FD03F

split-complementary

#3F88D0 #D03F3F #D0CF3F

monochromatic

#1D4B77 #2969A9 #3F88D0 #70A6DC #A1C5E8

Accessibility & contrast

On white

3.72

#3F88D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#3F88D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F88D0

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F88D0	#FFFFFF	#000000	##000000
##3F88D0	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)

#688CD3

Deuteranopia (green-blind)

#537ECF

Tritanopia (blue-blind)

#0099A2

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3f88d0;
/* rgb */ color: rgb(63, 136, 208);
/* oklch */ color: oklch(61.4% 0.132 250.6);

Tailwind

colors: {
  custom: {
    50: '#84aadf',
    500: '#3f88d0',
    950: '#000000',
  },
}

SCSS

$custom: #3f88d0;
$custom-light: #84aadf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f88d0",
  "rgb": {
    "r": 63,
    "g": 136,
    "b": 208
  },
  "hsl": {
    "h": 209.793,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.61392,
    "c": 0.1316,
    "h": 250.6
  },
  "luminance": 0.23219
}

Semantic roles & 50–950 ramp

primary

#3F88D0

secondary

#D5B596

accent

#9344E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F88D0

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

Preview Lab → · Contrast checker → · Palette generator →