#3F9FBE#3F9FBE

#3F9FBE is a light, moderate cyan. Relative luminance 0.296; OKLCH L 65.9% C 0.099 H 222.9°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F9FBE
RGB	rgb(63, 159, 190)
HSL	hsl(195, 50%, 50%)
HSV	hsv(195, 67%, 75%)
CMYK	cmyk(66.8%, 16.3%, 0%, 25.5%)
CIE-LAB	lab(61.28, -18.23, -24.24)
CIE-LCH	lch(61.28, 30.33, 233.07°)
OKLab	oklab(65.88% -0.0729 -0.0677)
OKLCH	oklch(65.88% 0.099 222.9)
XYZ	xyz(23.7385, 29.5682, 53.1614)
Luminance	0.2957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9FBE #BE5E3F

analogous

#3FBE9E #3F9FBE #3F5FBE

triadic

#3F9FBE #BE3F9F #9FBE3F

tetradic

#3F9FBE #9E3FBE #BE5E3F #5FBE3F

square

#3F9FBE #9E3FBE #BE5E3F #5FBE3F

split-complementary

#3F9FBE #BE3F5F #BE9E3F

monochromatic

#215262 #307990 #3F9FBE #6CB6CE #9ACDDD

Accessibility & contrast

On white

3.04

#3F9FBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.91

#3F9FBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9FBE

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9FBE	#FFFFFF	#000000	##000000
##3F9FBE	1.00	3.04	6.91	6.91
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.91	21.00	1.00	1.00
##000000	6.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D9BC0

Deuteranopia (green-blind)

#7B8EBE

Tritanopia (blue-blind)

#00A9A9

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9fbe;
/* rgb */ color: rgb(63, 159, 190);
/* oklch */ color: oklch(65.9% 0.099 222.9);

Tailwind

colors: {
  custom: {
    50: '#83bbd1',
    500: '#3f9fbe',
    950: '#000000',
  },
}

SCSS

$custom: #3f9fbe;
$custom-light: #83bbd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9fbe",
  "rgb": {
    "r": 63,
    "g": 159,
    "b": 190
  },
  "hsl": {
    "h": 194.646,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.65878,
    "c": 0.09947,
    "h": 222.9
  },
  "luminance": 0.29571
}

Semantic roles & 50–950 ramp

primary

#3F9FBE

secondary

#C99E8F

accent

#704EDA

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #3F9FBE

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

Preview Lab → · Contrast checker → · Palette generator →