#3F9BC9#3F9BC9

#3F9BC9 is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.4% C 0.110 H 233.9°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#3F9BC9
RGB	rgb(63, 155, 201)
HSL	hsl(200, 56%, 52%)
HSV	hsv(200, 69%, 79%)
CMYK	cmyk(68.7%, 22.9%, 0%, 21.2%)
CIE-LAB	lab(60.53, -12.48, -31.57)
CIE-LCH	lch(60.53, 33.95, 248.43°)
OKLab	oklab(65.42% -0.0648 -0.0887)
OKLCH	oklch(65.42% 0.11 233.9)
XYZ	xyz(24.3097, 28.7138, 59.5082)
Luminance	0.2872 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9BC9 #C96D3F

analogous

#3FC9B2 #3F9BC9 #3F56C9

triadic

#3F9BC9 #C93F9B #9BC93F

tetradic

#3F9BC9 #B23FC9 #C96D3F #56C93F

square

#3F9BC9 #B23FC9 #C96D3F #56C93F

split-complementary

#3F9BC9 #C93F56 #C9B23F

monochromatic

#1F546F #2D789E #3F9BC9 #6FB4D6 #9FCDE4

Accessibility & contrast

On white

3.11

#3F9BC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#3F9BC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9BC9

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9BC9	#FFFFFF	#000000	##000000
##3F9BC9	1.00	3.11	6.74	6.74
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#859ACB

Deuteranopia (green-blind)

#728CC8

Tritanopia (blue-blind)

#00A7AA

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3f9bc9;
/* rgb */ color: rgb(63, 155, 201);
/* oklch */ color: oklch(65.4% 0.110 233.9);

Tailwind

colors: {
  custom: {
    50: '#84b8d9',
    500: '#3f9bc9',
    950: '#000000',
  },
}

SCSS

$custom: #3f9bc9;
$custom-light: #84b8d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9bc9",
  "rgb": {
    "r": 63,
    "g": 155,
    "b": 201
  },
  "hsl": {
    "h": 200,
    "s": 56.098,
    "l": 51.765
  },
  "oklch": {
    "l": 0.65423,
    "c": 0.10981,
    "h": 233.9
  },
  "luminance": 0.28716
}

Semantic roles & 50–950 ramp

primary

#3F9BC9

secondary

#D0A894

accent

#7B48DF

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F9BC9

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

Preview Lab → · Contrast checker → · Palette generator →