#3F7FBD#3F7FBD

#3F7FBD is a mid, moderate cyan. Relative luminance 0.199; OKLCH L 58.3% C 0.116 H 249.8°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FBD
RGB	rgb(63, 127, 189)
HSL	hsl(210, 50%, 49%)
HSV	hsv(210, 67%, 74%)
CMYK	cmyk(66.7%, 32.8%, 0%, 25.9%)
CIE-LAB	lab(51.73, -0.52, -38.53)
CIE-LCH	lch(51.73, 38.53, 269.23°)
OKLab	oklab(58.29% -0.0401 -0.1091)
OKLCH	oklch(58.29% 0.116 249.8)
XYZ	xyz(18.8212, 19.9077, 50.9849)
Luminance	0.1991 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FBD #BD7D3F

analogous

#3FBDBC #3F7FBD #3F40BD

triadic

#3F7FBD #BD3F7F #7FBD3F

tetradic

#3F7FBD #BC3FBD #BD7D3F #40BD3F

square

#3F7FBD #BC3FBD #BD7D3F #40BD3F

split-complementary

#3F7FBD #BD3F40 #BDBC3F

monochromatic

#204161 #30608F #3F7FBD #6B9DCE #99BCDD

Accessibility & contrast

On white

4.22

#3F7FBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#3F7FBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FBD

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FBD	#FFFFFF	#000000	##000000
##3F7FBD	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6482C0

Deuteranopia (green-blind)

#5276BC

Tritanopia (blue-blind)

#008E95

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3f7fbd;
/* rgb */ color: rgb(63, 127, 189);
/* oklch */ color: oklch(58.3% 0.116 249.8);

Tailwind

colors: {
  custom: {
    50: '#81a3d1',
    500: '#3f7fbd',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fbd;
$custom-light: #81a3d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fbd",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 189
  },
  "hsl": {
    "h": 209.524,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.58287,
    "c": 0.11621,
    "h": 249.8
  },
  "luminance": 0.1991
}

Semantic roles & 50–950 ramp

primary

#3F7FBD

secondary

#C9AB8F

accent

#934EDA

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F7FBD

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

Preview Lab → · Contrast checker → · Palette generator →