#3F9EC7#3F9EC7

#3F9EC7 is a light, moderate cyan. Relative luminance 0.296; OKLCH L 66.0% C 0.107 H 230.1°. Best body text is #000000 at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F9EC7
RGB	rgb(63, 158, 199)
HSL	hsl(198, 55%, 51%)
HSV	hsv(198, 68%, 78%)
CMYK	cmyk(68.3%, 20.6%, 0%, 22%)
CIE-LAB	lab(61.33, -14.78, -29.20)
CIE-LCH	lch(61.33, 32.73, 243.16°)
OKLab	oklab(66.04% -0.0685 -0.0819)
OKLCH	oklch(66.04% 0.107 230.1)
XYZ	xyz(24.5815, 29.6313, 58.4457)
Luminance	0.2963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9EC7 #C7683F

analogous

#3FC7AC #3F9EC7 #3F5AC7

triadic

#3F9EC7 #C73F9E #9EC73F

tetradic

#3F9EC7 #AC3FC7 #C7683F #5AC73F

square

#3F9EC7 #AC3FC7 #C7683F #5AC73F

split-complementary

#3F9EC7 #C73F5A #C7AC3F

monochromatic

#20556C #2D7A9B #3F9EC7 #6EB6D5 #9ECEE3

Accessibility & contrast

On white

3.03

#3F9EC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.93

#3F9EC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9EC7

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9EC7	#FFFFFF	#000000	##000000
##3F9EC7	1.00	3.03	6.93	6.93
#FFFFFF	3.03	1.00	21.00	21.00
#000000	6.93	21.00	1.00	1.00
##000000	6.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#899CC9

Deuteranopia (green-blind)

#768EC6

Tritanopia (blue-blind)

#00A9AC

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9ec7;
/* rgb */ color: rgb(63, 158, 199);
/* oklch */ color: oklch(66.0% 0.107 230.1);

Tailwind

colors: {
  custom: {
    50: '#84bad8',
    500: '#3f9ec7',
    950: '#000000',
  },
}

SCSS

$custom: #3f9ec7;
$custom-light: #84bad8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9ec7",
  "rgb": {
    "r": 63,
    "g": 158,
    "b": 199
  },
  "hsl": {
    "h": 198.088,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.66039,
    "c": 0.10674,
    "h": 230.1
  },
  "luminance": 0.29634
}

Semantic roles & 50–950 ramp

primary

#3F9EC7

secondary

#CFA593

accent

#764ADE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F9EC7

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

Preview Lab → · Contrast checker → · Palette generator →