#3F99CE#3F99CE

#3F99CE is a light, moderate cyan. Relative luminance 0.283; OKLCH L 65.2% C 0.116 H 238.2°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F99CE
RGB	rgb(63, 153, 206)
HSL	hsl(202, 59%, 53%)
HSV	hsv(202, 69%, 81%)
CMYK	cmyk(69.4%, 25.7%, 0%, 19.2%)
CIE-LAB	lab(60.15, -9.70, -34.96)
CIE-LCH	lch(60.15, 36.28, 254.49°)
OKLab	oklab(65.2% -0.0611 -0.0985)
OKLCH	oklch(65.2% 0.116 238.2)
XYZ	xyz(24.5774, 28.2928, 62.5463)
Luminance	0.2829 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99CE #CE743F

analogous

#3FCEBC #3F99CE #3F51CE

triadic

#3F99CE #CE3F99 #99CE3F

tetradic

#3F99CE #BC3FCE #CE743F #51CE3F

square

#3F99CE #BC3FCE #CE743F #51CE3F

split-complementary

#3F99CE #CE3F51 #CEBC3F

monochromatic

#1E5575 #2A78A6 #3F99CE #70B3DA #A1CDE7

Accessibility & contrast

On white

3.15

#3F99CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.66

#3F99CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99CE

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99CE	#FFFFFF	#000000	##000000
##3F99CE	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)

#8099D0

Deuteranopia (green-blind)

#6D8BCD

Tritanopia (blue-blind)

#00A6AB

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #3f99ce;
/* rgb */ color: rgb(63, 153, 206);
/* oklch */ color: oklch(65.2% 0.116 238.2);

Tailwind

colors: {
  custom: {
    50: '#84b7dd',
    500: '#3f99ce',
    950: '#000000',
  },
}

SCSS

$custom: #3f99ce;
$custom-light: #84b7dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99ce",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 206
  },
  "hsl": {
    "h": 202.238,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.65195,
    "c": 0.11586,
    "h": 238.2
  },
  "luminance": 0.28295
}

Semantic roles & 50–950 ramp

primary

#3F99CE

secondary

#D3AC95

accent

#8045E3

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F99CE

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

Preview Lab → · Contrast checker → · Palette generator →