#3F8FD7#3F8FD7

#3F8FD7 is a light, vivid cyan. Relative luminance 0.256; OKLCH L 63.4% C 0.134 H 248.7°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#3F8FD7
RGB	rgb(63, 143, 215)
HSL	hsl(208, 66%, 55%)
HSV	hsv(208, 71%, 84%)
CMYK	cmyk(70.7%, 33.5%, 0%, 15.7%)
CIE-LAB	lab(57.66, -0.89, -43.91)
CIE-LCH	lch(57.66, 43.92, 268.84°)
OKLab	oklab(63.36% -0.0486 -0.1246)
OKLCH	oklch(63.36% 0.134 248.7)
XYZ	xyz(24.1335, 25.6053, 67.9472)
Luminance	0.2561 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8FD7 #D7873F

analogous

#3FD7D3 #3F8FD7 #3F43D7

triadic

#3F8FD7 #D73F8F #8FD73F

tetradic

#3F8FD7 #D33FD7 #D7873F #43D73F

square

#3F8FD7 #D33FD7 #D7873F #43D73F

split-complementary

#3F8FD7 #D73F43 #D7D33F

monochromatic

#1B5081 #2570B3 #3F8FD7 #72ADE2 #A4CAEC

Accessibility & contrast

On white

3.43

#3F8FD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#3F8FD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8FD7

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8FD7	#FFFFFF	#000000	##000000
##3F8FD7	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F92DA

Deuteranopia (green-blind)

#5984D6

Tritanopia (blue-blind)

#00A0A9

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f8fd7;
/* rgb */ color: rgb(63, 143, 215);
/* oklch */ color: oklch(63.4% 0.134 248.7);

Tailwind

colors: {
  custom: {
    50: '#86afe3',
    500: '#3f8fd7',
    950: '#000000',
  },
}

SCSS

$custom: #3f8fd7;
$custom-light: #86afe3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8fd7",
  "rgb": {
    "r": 63,
    "g": 143,
    "b": 215
  },
  "hsl": {
    "h": 208.421,
    "s": 65.517,
    "l": 54.51
  },
  "oklch": {
    "l": 0.63363,
    "c": 0.13373,
    "h": 248.7
  },
  "luminance": 0.25608
}

Semantic roles & 50–950 ramp

primary

#3F8FD7

secondary

#D9B799

accent

#8F3FE8

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8FD7

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

Preview Lab → · Contrast checker → · Palette generator →