#3F8BD8#3F8BD8

#3F8BD8 is a light, vivid cyan. Relative luminance 0.245; OKLCH L 62.5% C 0.139 H 251.3°. Best body text is #000000 at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BD8
RGB	rgb(63, 139, 216)
HSL	hsl(210, 66%, 55%)
HSV	hsv(210, 71%, 85%)
CMYK	cmyk(70.8%, 35.6%, 0%, 15.3%)
CIE-LAB	lab(56.56, 1.82, -46.21)
CIE-LCH	lch(56.56, 46.24, 272.25°)
OKLab	oklab(62.52% -0.0445 -0.1314)
OKLCH	oklch(62.52% 0.139 251.3)
XYZ	xyz(23.6726, 24.4773, 68.4294)
Luminance	0.2448 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BD8 #D88C3F

analogous

#3FD8D8 #3F8BD8 #403FD8

triadic

#3F8BD8 #D83F8B #8BD83F

tetradic

#3F8BD8 #D83FD8 #D88C3F #3FD840

square

#3F8BD8 #D83FD8 #D88C3F #3FD840

split-complementary

#3F8BD8 #D8403F #D8D83F

monochromatic

#1A4E82 #256CB5 #3F8BD8 #72AAE2 #A5C8ED

Accessibility & contrast

On white

3.56

#3F8BD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.90

#3F8BD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BD8

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BD8	#FFFFFF	#000000	##000000
##3F8BD8	1.00	3.56	5.90	5.90
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.90	21.00	1.00	1.00
##000000	5.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6890DB

Deuteranopia (green-blind)

#5281D6

Tritanopia (blue-blind)

#009DA7

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3f8bd8;
/* rgb */ color: rgb(63, 139, 216);
/* oklch */ color: oklch(62.5% 0.139 251.3);

Tailwind

colors: {
  custom: {
    50: '#86ace4',
    500: '#3f8bd8',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bd8;
$custom-light: #86ace4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bd8",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 216
  },
  "hsl": {
    "h": 210.196,
    "s": 66.234,
    "l": 54.706
  },
  "oklch": {
    "l": 0.62518,
    "c": 0.13871,
    "h": 251.3
  },
  "luminance": 0.2448
}

Semantic roles & 50–950 ramp

primary

#3F8BD8

secondary

#DABA99

accent

#943FE9

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C1015

muted

#7D7F84

Preview Lab

Preview with #3F8BD8

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

Preview Lab → · Contrast checker → · Palette generator →