#3F9BC0#3F9BC0

#3F9BC0 is a light, moderate cyan. Relative luminance 0.283; OKLCH L 65.0% C 0.102 H 228.1°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F9BC0
RGB	rgb(63, 155, 192)
HSL	hsl(197, 51%, 50%)
HSV	hsv(197, 67%, 75%)
CMYK	cmyk(67.2%, 19.3%, 0%, 24.7%)
CIE-LAB	lab(60.16, -15.44, -27.09)
CIE-LCH	lch(60.16, 31.18, 240.33°)
OKLab	oklab(65.01% -0.068 -0.0758)
OKLCH	oklch(65.01% 0.102 228.1)
XYZ	xyz(23.2819, 28.3027, 54.0949)
Luminance	0.2831 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9BC0 #C0643F

analogous

#3FC0A4 #3F9BC0 #3F5BC0

triadic

#3F9BC0 #C03F9B #9BC03F

tetradic

#3F9BC0 #A43FC0 #C0643F #5BC03F

square

#3F9BC0 #A43FC0 #C0643F #5BC03F

split-complementary

#3F9BC0 #C03F5B #C0A43F

monochromatic

#215164 #307692 #3F9BC0 #6DB3CF #9BCBDE

Accessibility & contrast

On white

3.15

#3F9BC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.66

#3F9BC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9BC0

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9BC0	#FFFFFF	#000000	##000000
##3F9BC0	1.00	3.15	6.66	6.66
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.66	21.00	1.00	1.00
##000000	6.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8898C2

Deuteranopia (green-blind)

#768BC0

Tritanopia (blue-blind)

#00A6A7

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #3f9bc0;
/* rgb */ color: rgb(63, 155, 192);
/* oklch */ color: oklch(65.0% 0.102 228.1);

Tailwind

colors: {
  custom: {
    50: '#83b8d3',
    500: '#3f9bc0',
    950: '#000000',
  },
}

SCSS

$custom: #3f9bc0;
$custom-light: #83b8d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9bc0",
  "rgb": {
    "r": 63,
    "g": 155,
    "b": 192
  },
  "hsl": {
    "h": 197.209,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.65009,
    "c": 0.10184,
    "h": 228.1
  },
  "luminance": 0.28305
}

Semantic roles & 50–950 ramp

primary

#3F9BC0

secondary

#CAA191

accent

#764EDA

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1114

muted

#7D8082

Preview Lab

Preview with #3F9BC0

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

Preview Lab → · Contrast checker → · Palette generator →