#3F9CCB#3F9CCB

#3F9CCB is a light, moderate cyan. Relative luminance 0.291; OKLCH L 65.8% C 0.111 H 234.2°. Best body text is #000000 at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#3F9CCB
RGB	rgb(63, 156, 203)
HSL	hsl(200, 57%, 52%)
HSV	hsv(200, 69%, 80%)
CMYK	cmyk(69%, 23.2%, 0%, 20.4%)
CIE-LAB	lab(60.91, -12.37, -32.10)
CIE-LCH	lch(60.91, 34.40, 248.93°)
OKLab	oklab(65.75% -0.0651 -0.0902)
OKLCH	oklch(65.75% 0.111 234.2)
XYZ	xyz(24.7136, 29.1428, 60.8110)
Luminance	0.2914 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9CCB #CB6E3F

analogous

#3FCBB4 #3F9CCB #3F56CB

triadic

#3F9CCB #CB3F9C #9CCB3F

tetradic

#3F9CCB #B43FCB #CB6E3F #56CB3F

square

#3F9CCB #B43FCB #CB6E3F #56CB3F

split-complementary

#3F9CCB #CB3F56 #CBB43F

monochromatic

#1F5571 #2C7AA1 #3F9CCB #6FB5D8 #9FCEE5

Accessibility & contrast

On white

3.08

#3F9CCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.83

#3F9CCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9CCB

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9CCB	#FFFFFF	#000000	##000000
##3F9CCB	1.00	3.08	6.83	6.83
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.83	21.00	1.00	1.00
##000000	6.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#859BCD

Deuteranopia (green-blind)

#728DCA

Tritanopia (blue-blind)

#00A8AC

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #3f9ccb;
/* rgb */ color: rgb(63, 156, 203);
/* oklch */ color: oklch(65.8% 0.111 234.2);

Tailwind

colors: {
  custom: {
    50: '#84b9db',
    500: '#3f9ccb',
    950: '#000000',
  },
}

SCSS

$custom: #3f9ccb;
$custom-light: #84b9db;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9ccb",
  "rgb": {
    "r": 63,
    "g": 156,
    "b": 203
  },
  "hsl": {
    "h": 200.143,
    "s": 57.377,
    "l": 52.157
  },
  "oklch": {
    "l": 0.65752,
    "c": 0.11124,
    "h": 234.2
  },
  "luminance": 0.29145
}

Semantic roles & 50–950 ramp

primary

#3F9CCB

secondary

#D1A994

accent

#7B47E1

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F9CCB

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

Preview Lab → · Contrast checker → · Palette generator →