#3F8DD8#3F8DD8

#3F8DD8 is a light, vivid cyan. Relative luminance 0.251; OKLCH L 63.0% C 0.137 H 250.2°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#3F8DD8
RGB	rgb(63, 141, 216)
HSL	hsl(209, 66%, 55%)
HSV	hsv(209, 71%, 85%)
CMYK	cmyk(70.8%, 34.7%, 0%, 15.3%)
CIE-LAB	lab(57.14, 0.64, -45.30)
CIE-LCH	lch(57.14, 45.30, 270.80°)
OKLab	oklab(62.97% -0.0464 -0.1287)
OKLCH	oklch(62.97% 0.137 250.2)
XYZ	xyz(23.9648, 25.0618, 68.5268)
Luminance	0.2506 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8DD8 #D88A3F

analogous

#3FD8D7 #3F8DD8 #3F40D8

triadic

#3F8DD8 #D83F8D #8DD83F

tetradic

#3F8DD8 #D73FD8 #D88A3F #40D83F

square

#3F8DD8 #D73FD8 #D88A3F #40D83F

split-complementary

#3F8DD8 #D83F40 #D8D73F

monochromatic

#1A4F82 #256EB5 #3F8DD8 #72ABE2 #A5C9ED

Accessibility & contrast

On white

3.49

#3F8DD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#3F8DD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8DD8

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8DD8	#FFFFFF	#000000	##000000
##3F8DD8	1.00	3.49	6.01	6.01
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B91DB

Deuteranopia (green-blind)

#5583D7

Tritanopia (blue-blind)

#009FA8

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3f8dd8;
/* rgb */ color: rgb(63, 141, 216);
/* oklch */ color: oklch(63.0% 0.137 250.2);

Tailwind

colors: {
  custom: {
    50: '#86aee4',
    500: '#3f8dd8',
    950: '#000000',
  },
}

SCSS

$custom: #3f8dd8;
$custom-light: #86aee4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8dd8",
  "rgb": {
    "r": 63,
    "g": 141,
    "b": 216
  },
  "hsl": {
    "h": 209.412,
    "s": 66.234,
    "l": 54.706
  },
  "oklch": {
    "l": 0.62967,
    "c": 0.1368,
    "h": 250.2
  },
  "luminance": 0.25064
}

Semantic roles & 50–950 ramp

primary

#3F8DD8

secondary

#DAB999

accent

#923FE9

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C1015

muted

#7D7F84

Preview Lab

Preview with #3F8DD8

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

Preview Lab → · Contrast checker → · Palette generator →