#3F9BCD#3F9BCD

#3F9BCD is a light, moderate cyan. Relative luminance 0.289; OKLCH L 65.6% C 0.114 H 236.1°. Best body text is #000000 at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3F9BCD
RGB	rgb(63, 155, 205)
HSL	hsl(201, 59%, 53%)
HSV	hsv(201, 69%, 80%)
CMYK	cmyk(69.3%, 24.4%, 0%, 19.6%)
CIE-LAB	lab(60.70, -11.15, -33.55)
CIE-LCH	lch(60.70, 35.35, 251.62°)
OKLab	oklab(65.61% -0.0634 -0.0944)
OKLCH	oklch(65.61% 0.114 236.1)
XYZ	xyz(24.7864, 28.9045, 62.0186)
Luminance	0.2891 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9BCD #CD713F

analogous

#3FCDB8 #3F9BCD #3F54CD

triadic

#3F9BCD #CD3F9B #9BCD3F

tetradic

#3F9BCD #B83FCD #CD713F #54CD3F

square

#3F9BCD #B83FCD #CD713F #54CD3F

split-complementary

#3F9BCD #CD3F54 #CDB83F

monochromatic

#1E5574 #2B79A4 #3F9BCD #70B4DA #A0CEE6

Accessibility & contrast

On white

3.10

#3F9BCD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.78

#3F9BCD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9BCD

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9BCD	#FFFFFF	#000000	##000000
##3F9BCD	1.00	3.10	6.78	6.78
#FFFFFF	3.10	1.00	21.00	21.00
#000000	6.78	21.00	1.00	1.00
##000000	6.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#839ACF

Deuteranopia (green-blind)

#708CCC

Tritanopia (blue-blind)

#00A8AC

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3f9bcd;
/* rgb */ color: rgb(63, 155, 205);
/* oklch */ color: oklch(65.6% 0.114 236.1);

Tailwind

colors: {
  custom: {
    50: '#84b8dc',
    500: '#3f9bcd',
    950: '#000000',
  },
}

SCSS

$custom: #3f9bcd;
$custom-light: #84b8dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9bcd",
  "rgb": {
    "r": 63,
    "g": 155,
    "b": 205
  },
  "hsl": {
    "h": 201.127,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.65613,
    "c": 0.11369,
    "h": 236.1
  },
  "luminance": 0.28907
}

Semantic roles & 50–950 ramp

primary

#3F9BCD

secondary

#D3AB95

accent

#7D46E2

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F9BCD

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

Preview Lab → · Contrast checker → · Palette generator →