#3F8CD8#3F8CD8

#3F8CD8 is a light, vivid cyan. Relative luminance 0.248; OKLCH L 62.7% C 0.138 H 250.7°. Best body text is #000000 at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F8CD8
RGB	rgb(63, 140, 216)
HSL	hsl(210, 66%, 55%)
HSV	hsv(210, 71%, 85%)
CMYK	cmyk(70.8%, 35.2%, 0%, 15.3%)
CIE-LAB	lab(56.85, 1.22, -45.75)
CIE-LCH	lch(56.85, 45.77, 271.53°)
OKLab	oklab(62.74% -0.0455 -0.13)
OKLCH	oklch(62.74% 0.138 250.7)
XYZ	xyz(23.8180, 24.7682, 68.4779)
Luminance	0.2477 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8CD8 #D88B3F

analogous

#3FD8D8 #3F8CD8 #3F40D8

triadic

#3F8CD8 #D83F8C #8CD83F

tetradic

#3F8CD8 #D83FD8 #D88B3F #40D83F

square

#3F8CD8 #D83FD8 #D88B3F #40D83F

split-complementary

#3F8CD8 #D83F40 #D8D83F

monochromatic

#1A4F82 #256DB5 #3F8CD8 #72AAE2 #A5C9ED

Accessibility & contrast

On white

3.53

#3F8CD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.95

#3F8CD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8CD8

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8CD8	#FFFFFF	#000000	##000000
##3F8CD8	1.00	3.53	5.95	5.95
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.95	21.00	1.00	1.00
##000000	5.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A90DB

Deuteranopia (green-blind)

#5382D7

Tritanopia (blue-blind)

#009EA8

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3f8cd8;
/* rgb */ color: rgb(63, 140, 216);
/* oklch */ color: oklch(62.7% 0.138 250.7);

Tailwind

colors: {
  custom: {
    50: '#86ade4',
    500: '#3f8cd8',
    950: '#000000',
  },
}

SCSS

$custom: #3f8cd8;
$custom-light: #86ade4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8cd8",
  "rgb": {
    "r": 63,
    "g": 140,
    "b": 216
  },
  "hsl": {
    "h": 209.804,
    "s": 66.234,
    "l": 54.706
  },
  "oklch": {
    "l": 0.62743,
    "c": 0.13774,
    "h": 250.7
  },
  "luminance": 0.24771
}

Semantic roles & 50–950 ramp

primary

#3F8CD8

secondary

#DAB999

accent

#933FE9

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C1015

muted

#7D7F84

Preview Lab

Preview with #3F8CD8

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

Preview Lab → · Contrast checker → · Palette generator →