#3F8FCB#3F8FCB

#3F8FCB is a light, moderate cyan. Relative luminance 0.250; OKLCH L 62.7% C 0.120 H 244.2°. Best body text is #000000 at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F8FCB
RGB	rgb(63, 143, 203)
HSL	hsl(206, 57%, 52%)
HSV	hsv(206, 69%, 80%)
CMYK	cmyk(69%, 29.6%, 0%, 20.4%)
CIE-LAB	lab(57.09, -5.05, -38.07)
CIE-LCH	lch(57.09, 38.40, 262.45°)
OKLab	oklab(62.72% -0.0521 -0.1076)
OKLCH	oklch(62.72% 0.12 244.2)
XYZ	xyz(22.6477, 25.0110, 60.1224)
Luminance	0.2501 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8FCB #CB7B3F

analogous

#3FCBC1 #3F8FCB #3F49CB

triadic

#3F8FCB #CB3F8F #8FCB3F

tetradic

#3F8FCB #C13FCB #CB7B3F #49CB3F

square

#3F8FCB #C13FCB #CB7B3F #49CB3F

split-complementary

#3F8FCB #CB3F49 #CBC13F

monochromatic

#1F4E71 #2C6FA1 #3F8FCB #6FABD8 #9FC7E5

Accessibility & contrast

On white

3.50

#3F8FCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.00

#3F8FCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8FCB

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8FCB	#FFFFFF	#000000	##000000
##3F8FCB	1.00	3.50	6.00	6.00
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.00	21.00	1.00	1.00
##000000	6.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7490CE

Deuteranopia (green-blind)

#6183CA

Tritanopia (blue-blind)

#009EA4

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3f8fcb;
/* rgb */ color: rgb(63, 143, 203);
/* oklch */ color: oklch(62.7% 0.120 244.2);

Tailwind

colors: {
  custom: {
    50: '#84afdb',
    500: '#3f8fcb',
    950: '#000000',
  },
}

SCSS

$custom: #3f8fcb;
$custom-light: #84afdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8fcb",
  "rgb": {
    "r": 63,
    "g": 143,
    "b": 203
  },
  "hsl": {
    "h": 205.714,
    "s": 57.377,
    "l": 52.157
  },
  "oklch": {
    "l": 0.62723,
    "c": 0.11952,
    "h": 244.2
  },
  "luminance": 0.25013
}

Semantic roles & 50–950 ramp

primary

#3F8FCB

secondary

#D1AF94

accent

#8947E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8FCB

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

Preview Lab → · Contrast checker → · Palette generator →