#3F8BD5#3F8BD5

#3F8BD5 is a light, vivid cyan. Relative luminance 0.243; OKLCH L 62.3% C 0.135 H 250.4°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BD5
RGB	rgb(63, 139, 213)
HSL	hsl(210, 64%, 54%)
HSV	hsv(210, 70%, 84%)
CMYK	cmyk(70.4%, 34.7%, 0%, 16.5%)
CIE-LAB	lab(56.41, 0.76, -44.76)
CIE-LCH	lch(56.41, 44.77, 270.97°)
OKLab	oklab(62.35% -0.0453 -0.1271)
OKLCH	oklch(62.35% 0.135 250.4)
XYZ	xyz(23.2883, 24.3236, 66.4055)
Luminance	0.2433 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BD5 #D5893F

analogous

#3FD5D4 #3F8BD5 #3F40D5

triadic

#3F8BD5 #D53F8B #8BD53F

tetradic

#3F8BD5 #D43FD5 #D5893F #40D53F

square

#3F8BD5 #D43FD5 #D5893F #40D53F

split-complementary

#3F8BD5 #D53F40 #D5D43F

monochromatic

#1C4D7E #276CB0 #3F8BD5 #71A9E0 #A3C8EB

Accessibility & contrast

On white

3.58

#3F8BD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#3F8BD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BD5

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BD5	#FFFFFF	#000000	##000000
##3F8BD5	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A8FD8

Deuteranopia (green-blind)

#5481D4

Tritanopia (blue-blind)

#009CA6

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f8bd5;
/* rgb */ color: rgb(63, 139, 213);
/* oklch */ color: oklch(62.3% 0.135 250.4);

Tailwind

colors: {
  custom: {
    50: '#85ace2',
    500: '#3f8bd5',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bd5;
$custom-light: #85ace2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bd5",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 213
  },
  "hsl": {
    "h": 209.6,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.62349,
    "c": 0.13497,
    "h": 250.4
  },
  "luminance": 0.24326
}

Semantic roles & 50–950 ramp

primary

#3F8BD5

secondary

#D8B798

accent

#9341E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8BD5

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

Preview Lab → · Contrast checker → · Palette generator →