#3F7FC5#3F7FC5

#3F7FC5 is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.7% C 0.126 H 252.6°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FC5
RGB	rgb(63, 127, 197)
HSL	hsl(211, 54%, 51%)
HSV	hsv(211, 68%, 77%)
CMYK	cmyk(68%, 35.5%, 0%, 22.7%)
CIE-LAB	lab(52.14, 2.28, -42.47)
CIE-LCH	lch(52.14, 42.53, 273.08°)
OKLab	oklab(58.73% -0.0379 -0.1206)
OKLCH	oklch(58.73% 0.126 252.6)
XYZ	xyz(19.7136, 20.2647, 55.6850)
Luminance	0.2027 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FC5 #C5853F

analogous

#3FC2C5 #3F7FC5 #423FC5

triadic

#3F7FC5 #C53F7F #7FC53F

tetradic

#3F7FC5 #C53FC2 #C5853F #3FC542

square

#3F7FC5 #C53FC2 #C5853F #3FC542

split-complementary

#3F7FC5 #C5423F #C2C53F

monochromatic

#20436A #2E6199 #3F7FC5 #6E9ED3 #9DBEE1

Accessibility & contrast

On white

4.16

#3F7FC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#3F7FC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FC5

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FC5	#FFFFFF	#000000	##000000
##3F7FC5	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6083C8

Deuteranopia (green-blind)

#4D77C4

Tritanopia (blue-blind)

#008F99

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f7fc5;
/* rgb */ color: rgb(63, 127, 197);
/* oklch */ color: oklch(58.7% 0.126 252.6);

Tailwind

colors: {
  custom: {
    50: '#82a3d7',
    500: '#3f7fc5',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fc5;
$custom-light: #82a3d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fc5",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 197
  },
  "hsl": {
    "h": 211.343,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.58734,
    "c": 0.12639,
    "h": 252.6
  },
  "luminance": 0.20267
}

Semantic roles & 50–950 ramp

primary

#3F7FC5

secondary

#CEB192

accent

#974BDD

background

#F8FAFD

surface

#F0F3FA

border

#CBCDD3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #3F7FC5

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

Preview Lab → · Contrast checker → · Palette generator →