#3FA9CB#3FA9CB

#3FA9CB is a light, moderate cyan. Relative luminance 0.337; OKLCH L 68.8% C 0.107 H 223.1°. Best body text is #000000 at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#3FA9CB
RGB	rgb(63, 169, 203)
HSL	hsl(195, 57%, 52%)
HSV	hsv(195, 69%, 80%)
CMYK	cmyk(69%, 16.7%, 0%, 20.4%)
CIE-LAB	lab(64.76, -19.35, -26.16)
CIE-LCH	lch(64.76, 32.54, 233.50°)
OKLab	oklab(68.83% -0.0782 -0.0731)
OKLCH	oklch(68.83% 0.107 223.1)
XYZ	xyz(27.0130, 33.7415, 61.5774)
Luminance	0.3374 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FA9CB #CB613F

analogous

#3FCBA7 #3FA9CB #3F63CB

triadic

#3FA9CB #CB3FA9 #A9CB3F

tetradic

#3FA9CB #A73FCB #CB613F #63CB3F

square

#3FA9CB #A73FCB #CB613F #63CB3F

split-complementary

#3FA9CB #CB3F63 #CBA73F

monochromatic

#1F5D71 #2C85A1 #3FA9CB #6FBFD8 #9FD4E5

Accessibility & contrast

On white

2.71

#3FA9CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.75

#3FA9CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FA9CB

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FA9CB	#FFFFFF	#000000	##000000
##3FA9CB	1.00	2.71	7.75	7.75
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.75	21.00	1.00	1.00
##000000	7.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96A5CD

Deuteranopia (green-blind)

#8297CB

Tritanopia (blue-blind)

#00B3B4

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #3fa9cb;
/* rgb */ color: rgb(63, 169, 203);
/* oklch */ color: oklch(68.8% 0.107 223.1);

Tailwind

colors: {
  custom: {
    50: '#85c2db',
    500: '#3fa9cb',
    950: '#000000',
  },
}

SCSS

$custom: #3fa9cb;
$custom-light: #85c2db;
$custom-dark: #000000;

JSON

{
  "hex": "#3fa9cb",
  "rgb": {
    "r": 63,
    "g": 169,
    "b": 203
  },
  "hsl": {
    "h": 194.571,
    "s": 57.377,
    "l": 52.157
  },
  "oklch": {
    "l": 0.68826,
    "c": 0.10702,
    "h": 223.1
  },
  "luminance": 0.33744
}

Semantic roles & 50–950 ramp

primary

#3FA9CB

secondary

#D1A394

accent

#6C47E1

background

#F8FBFD

surface

#F0F7FA

border

#CBD0D3

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #3FA9CB

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

Preview Lab → · Contrast checker → · Palette generator →