#3F7FAF#3F7FAF

#3F7FAF is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.5% C 0.099 H 243.4°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FAF
RGB	rgb(63, 127, 175)
HSL	hsl(206, 47%, 47%)
HSV	hsv(206, 64%, 69%)
CMYK	cmyk(64%, 27.4%, 0%, 31.4%)
CIE-LAB	lab(51.07, -5.33, -31.51)
CIE-LCH	lch(51.07, 31.96, 260.40°)
OKLab	oklab(57.55% -0.0443 -0.0887)
OKLCH	oklch(57.55% 0.099 243.4)
XYZ	xyz(17.3742, 19.3289, 43.3644)
Luminance	0.1933 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FAF #AF6F3F

analogous

#3FAFA7 #3F7FAF #3F47AF

triadic

#3F7FAF #AF3F7F #7FAF3F

tetradic

#3F7FAF #A73FAF #AF6F3F #47AF3F

square

#3F7FAF #A73FAF #AF6F3F #47AF3F

split-complementary

#3F7FAF #AF3F47 #AFA73F

monochromatic

#1F3E55 #2F5E82 #3F7FAF #649DC7 #91B9D7

Accessibility & contrast

On white

4.32

#3F7FAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#3F7FAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FAF

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FAF	#FFFFFF	#000000	##000000
##3F7FAF	1.00	4.32	4.87	4.87
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A80B1

Deuteranopia (green-blind)

#5A75AE

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f7faf;
/* rgb */ color: rgb(63, 127, 175);
/* oklch */ color: oklch(57.5% 0.099 243.4);

Tailwind

colors: {
  custom: {
    50: '#7fa4c7',
    500: '#3f7faf',
    950: '#000000',
  },
}

SCSS

$custom: #3f7faf;
$custom-light: #7fa4c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7faf",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 175
  },
  "hsl": {
    "h": 205.714,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.57547,
    "c": 0.09917,
    "h": 243.4
  },
  "luminance": 0.19331
}

Semantic roles & 50–950 ramp

primary

#3F7FAF

secondary

#C3A187

accent

#8A51D7

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3F7FAF

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

Preview Lab → · Contrast checker → · Palette generator →