#3F99C4#3F99C4

#3F99C4 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.7% C 0.106 H 232.5°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3F99C4
RGB	rgb(63, 153, 196)
HSL	hsl(199, 53%, 51%)
HSV	hsv(199, 68%, 77%)
CMYK	cmyk(67.9%, 21.9%, 0%, 23.1%)
CIE-LAB	lab(59.73, -13.03, -30.01)
CIE-LCH	lch(59.73, 32.72, 246.52°)
OKLab	oklab(64.72% -0.0645 -0.0842)
OKLCH	oklch(64.72% 0.106 232.5)
XYZ	xyz(23.4010, 27.8222, 56.3508)
Luminance	0.2782 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99C4 #C46A3F

analogous

#3FC4AC #3F99C4 #3F57C4

triadic

#3F99C4 #C43F99 #99C43F

tetradic

#3F99C4 #AC3FC4 #C46A3F #57C43F

square

#3F99C4 #AC3FC4 #C46A3F #57C43F

split-complementary

#3F99C4 #C43F57 #C4AC3F

monochromatic

#205168 #2E7597 #3F99C4 #6EB2D2 #9DCBE1

Accessibility & contrast

On white

3.20

#3F99C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#3F99C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99C4

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99C4	#FFFFFF	#000000	##000000
##3F99C4	1.00	3.20	6.57	6.57
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8497C6

Deuteranopia (green-blind)

#718AC3

Tritanopia (blue-blind)

#00A5A7

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #3f99c4;
/* rgb */ color: rgb(63, 153, 196);
/* oklch */ color: oklch(64.7% 0.106 232.5);

Tailwind

colors: {
  custom: {
    50: '#83b7d6',
    500: '#3f99c4',
    950: '#000000',
  },
}

SCSS

$custom: #3f99c4;
$custom-light: #83b7d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99c4",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 196
  },
  "hsl": {
    "h": 199.398,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.64717,
    "c": 0.10605,
    "h": 232.5
  },
  "luminance": 0.27825
}

Semantic roles & 50–950 ramp

primary

#3F99C4

secondary

#CDA592

accent

#7A4BDC

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F99C4

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

Preview Lab → · Contrast checker → · Palette generator →