#3F9EC9#3F9EC9

#3F9EC9 is a light, moderate cyan. Relative luminance 0.297; OKLCH L 66.1% C 0.108 H 231.3°. Best body text is #000000 at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F9EC9
RGB	rgb(63, 158, 201)
HSL	hsl(199, 56%, 52%)
HSV	hsv(199, 69%, 79%)
CMYK	cmyk(68.7%, 21.4%, 0%, 21.2%)
CIE-LAB	lab(61.42, -14.12, -30.20)
CIE-LCH	lch(61.42, 33.34, 244.94°)
OKLab	oklab(66.13% -0.0678 -0.0847)
OKLCH	oklch(66.13% 0.108 231.3)
XYZ	xyz(24.8152, 29.7248, 59.6767)
Luminance	0.2973 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9EC9 #C96A3F

analogous

#3FC9AF #3F9EC9 #3F59C9

triadic

#3F9EC9 #C93F9E #9EC93F

tetradic

#3F9EC9 #AF3FC9 #C96A3F #59C93F

square

#3F9EC9 #AF3FC9 #C96A3F #59C93F

split-complementary

#3F9EC9 #C93F59 #C9AF3F

monochromatic

#1F566F #2D7B9E #3F9EC9 #6FB6D6 #9FCEE4

Accessibility & contrast

On white

3.02

#3F9EC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.95

#3F9EC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9EC9

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9EC9	#FFFFFF	#000000	##000000
##3F9EC9	1.00	3.02	6.95	6.95
#FFFFFF	3.02	1.00	21.00	21.00
#000000	6.95	21.00	1.00	1.00
##000000	6.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#889CCB

Deuteranopia (green-blind)

#758EC8

Tritanopia (blue-blind)

#00AAAC

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9ec9;
/* rgb */ color: rgb(63, 158, 201);
/* oklch */ color: oklch(66.1% 0.108 231.3);

Tailwind

colors: {
  custom: {
    50: '#84bad9',
    500: '#3f9ec9',
    950: '#000000',
  },
}

SCSS

$custom: #3f9ec9;
$custom-light: #84bad9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9ec9",
  "rgb": {
    "r": 63,
    "g": 158,
    "b": 201
  },
  "hsl": {
    "h": 198.696,
    "s": 56.098,
    "l": 51.765
  },
  "oklch": {
    "l": 0.6613,
    "c": 0.10849,
    "h": 231.3
  },
  "luminance": 0.29728
}

Semantic roles & 50–950 ramp

primary

#3F9EC9

secondary

#D0A694

accent

#7748DF

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F9EC9

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

Preview Lab → · Contrast checker → · Palette generator →