#3F99CD#3F99CD

#3F99CD is a light, moderate cyan. Relative luminance 0.282; OKLCH L 65.1% C 0.115 H 237.7°. Best body text is #000000 at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F99CD
RGB	rgb(63, 153, 205)
HSL	hsl(202, 59%, 53%)
HSV	hsv(202, 69%, 80%)
CMYK	cmyk(69.3%, 25.4%, 0%, 19.6%)
CIE-LAB	lab(60.11, -10.04, -34.47)
CIE-LCH	lch(60.11, 35.90, 253.77°)
OKLab	oklab(65.15% -0.0614 -0.097)
OKLCH	oklch(65.15% 0.115 237.7)
XYZ	xyz(24.4563, 28.2443, 61.9086)
Luminance	0.2825 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99CD #CD733F

analogous

#3FCDBA #3F99CD #3F52CD

triadic

#3F99CD #CD3F99 #99CD3F

tetradic

#3F99CD #BA3FCD #CD733F #52CD3F

square

#3F99CD #BA3FCD #CD733F #52CD3F

split-complementary

#3F99CD #CD3F52 #CDBA3F

monochromatic

#1E5474 #2B78A4 #3F99CD #70B3DA #A0CDE6

Accessibility & contrast

On white

3.16

#3F99CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.65

#3F99CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99CD

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99CD	#FFFFFF	#000000	##000000
##3F99CD	1.00	3.16	6.65	6.65
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.65	21.00	1.00	1.00
##000000	6.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8199CF

Deuteranopia (green-blind)

#6D8BCC

Tritanopia (blue-blind)

#00A6AB

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #3f99cd;
/* rgb */ color: rgb(63, 153, 205);
/* oklch */ color: oklch(65.1% 0.115 237.7);

Tailwind

colors: {
  custom: {
    50: '#84b7dc',
    500: '#3f99cd',
    950: '#000000',
  },
}

SCSS

$custom: #3f99cd;
$custom-light: #84b7dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99cd",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 205
  },
  "hsl": {
    "h": 201.972,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.65146,
    "c": 0.11483,
    "h": 237.7
  },
  "luminance": 0.28247
}

Semantic roles & 50–950 ramp

primary

#3F99CD

secondary

#D3AC95

accent

#7F46E2

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F99CD

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

Preview Lab → · Contrast checker → · Palette generator →