#3F9BCF#3F9BCF

#3F9BCF is a light, moderate cyan. Relative luminance 0.290; OKLCH L 65.7% C 0.116 H 237.2°. Best body text is #000000 at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#3F9BCF
RGB	rgb(63, 155, 207)
HSL	hsl(202, 60%, 53%)
HSV	hsv(202, 70%, 81%)
CMYK	cmyk(69.6%, 25.1%, 0%, 18.8%)
CIE-LAB	lab(60.78, -10.48, -34.53)
CIE-LCH	lch(60.78, 36.09, 253.12°)
OKLab	oklab(65.71% -0.0627 -0.0972)
OKLCH	oklch(65.71% 0.116 237.2)
XYZ	xyz(25.0293, 29.0017, 63.2982)
Luminance	0.2900 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9BCF #CF733F

analogous

#3FCFBB #3F9BCF #3F53CF

triadic

#3F9BCF #CF3F9B #9BCF3F

tetradic

#3F9BCF #BB3FCF #CF733F #53CF3F

square

#3F9BCF #BB3FCF #CF733F #53CF3F

split-complementary

#3F9BCF #CF3F53 #CFBB3F

monochromatic

#1E5676 #2A7AA7 #3F9BCF #70B4DB #A1CEE7

Accessibility & contrast

On white

3.09

#3F9BCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.80

#3F9BCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9BCF

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9BCF	#FFFFFF	#000000	##000000
##3F9BCF	1.00	3.09	6.80	6.80
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.80	21.00	1.00	1.00
##000000	6.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#829AD1

Deuteranopia (green-blind)

#6F8CCE

Tritanopia (blue-blind)

#00A8AD

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #3f9bcf;
/* rgb */ color: rgb(63, 155, 207);
/* oklch */ color: oklch(65.7% 0.116 237.2);

Tailwind

colors: {
  custom: {
    50: '#85b8de',
    500: '#3f9bcf',
    950: '#000000',
  },
}

SCSS

$custom: #3f9bcf;
$custom-light: #85b8de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9bcf",
  "rgb": {
    "r": 63,
    "g": 155,
    "b": 207
  },
  "hsl": {
    "h": 201.667,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.6571,
    "c": 0.1157,
    "h": 237.2
  },
  "luminance": 0.29004
}

Semantic roles & 50–950 ramp

primary

#3F9BCF

secondary

#D4AC96

accent

#7E45E3

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F9BCF

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

Preview Lab → · Contrast checker → · Palette generator →