#3F9DC8#3F9DC8

#3F9DC8 is a light, moderate cyan. Relative luminance 0.293; OKLCH L 65.8% C 0.108 H 231.6°. Best body text is #000000 at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F9DC8
RGB	rgb(63, 157, 200)
HSL	hsl(199, 55%, 52%)
HSV	hsv(199, 69%, 78%)
CMYK	cmyk(68.5%, 21.5%, 0%, 21.6%)
CIE-LAB	lab(61.08, -13.91, -30.16)
CIE-LCH	lch(61.08, 33.21, 245.25°)
OKLab	oklab(65.85% -0.0671 -0.0846)
OKLCH	oklch(65.85% 0.108 231.6)
XYZ	xyz(24.5281, 29.3381, 59.0025)
Luminance	0.2934 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9DC8 #C86A3F

analogous

#3FC8AF #3F9DC8 #3F59C8

triadic

#3F9DC8 #C83F9D #9DC83F

tetradic

#3F9DC8 #AF3FC8 #C86A3F #59C83F

square

#3F9DC8 #AF3FC8 #C86A3F #59C83F

split-complementary

#3F9DC8 #C83F59 #C8AF3F

monochromatic

#1F556D #2D7A9D #3F9DC8 #6FB5D6 #9ECEE3

Accessibility & contrast

On white

3.06

#3F9DC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.87

#3F9DC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9DC8

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9DC8	#FFFFFF	#000000	##000000
##3F9DC8	1.00	3.06	6.87	6.87
#FFFFFF	3.06	1.00	21.00	21.00
#000000	6.87	21.00	1.00	1.00
##000000	6.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879BCA

Deuteranopia (green-blind)

#758DC7

Tritanopia (blue-blind)

#00A9AB

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #3f9dc8;
/* rgb */ color: rgb(63, 157, 200);
/* oklch */ color: oklch(65.8% 0.108 231.6);

Tailwind

colors: {
  custom: {
    50: '#84bad9',
    500: '#3f9dc8',
    950: '#000000',
  },
}

SCSS

$custom: #3f9dc8;
$custom-light: #84bad9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9dc8",
  "rgb": {
    "r": 63,
    "g": 157,
    "b": 200
  },
  "hsl": {
    "h": 198.832,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.65848,
    "c": 0.108,
    "h": 231.6
  },
  "luminance": 0.29341
}

Semantic roles & 50–950 ramp

primary

#3F9DC8

secondary

#D0A693

accent

#7849DF

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F9DC8

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

Preview Lab → · Contrast checker → · Palette generator →