#3F7FD5#3F7FD5

#3F7FD5 is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.7% C 0.147 H 256.6°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FD5
RGB	rgb(63, 127, 213)
HSL	hsl(214, 64%, 54%)
HSV	hsv(214, 70%, 84%)
CMYK	cmyk(70.4%, 40.4%, 0%, 16.5%)
CIE-LAB	lab(52.99, 7.96, -50.19)
CIE-LCH	lch(52.99, 50.82, 279.02°)
OKLab	oklab(59.68% -0.0341 -0.1432)
OKLCH	oklch(59.68% 0.147 256.6)
XYZ	xyz(21.6451, 21.0373, 65.8578)
Luminance	0.2104 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FD5 #D5953F

analogous

#3FCAD5 #3F7FD5 #4A3FD5

triadic

#3F7FD5 #D53F7F #7FD53F

tetradic

#3F7FD5 #D53FCA #D5953F #3FD54A

square

#3F7FD5 #D53FCA #D5953F #3FD54A

split-complementary

#3F7FD5 #D54A3F #CAD53F

monochromatic

#1C467E #2761B0 #3F7FD5 #71A0E0 #A3C2EB

Accessibility & contrast

On white

4.03

#3F7FD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#3F7FD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FD5

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FD5	#FFFFFF	#000000	##000000
##3F7FD5	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5786D8

Deuteranopia (green-blind)

#3F78D3

Tritanopia (blue-blind)

#0093A0

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3f7fd5;
/* rgb */ color: rgb(63, 127, 213);
/* oklch */ color: oklch(59.7% 0.147 256.6);

Tailwind

colors: {
  custom: {
    50: '#85a3e2',
    500: '#3f7fd5',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fd5;
$custom-light: #85a3e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fd5",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 213
  },
  "hsl": {
    "h": 214.4,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.59679,
    "c": 0.14721,
    "h": 256.6
  },
  "luminance": 0.2104
}

Semantic roles & 50–950 ramp

primary

#3F7FD5

secondary

#D8BD98

accent

#A041E7

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F7FD5

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

Preview Lab → · Contrast checker → · Palette generator →