#3F7CD0#3F7CD0

#3F7CD0 is a mid, vivid cyan. Relative luminance 0.200; OKLCH L 58.7% C 0.144 H 257.0°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3F7CD0
RGB	rgb(63, 124, 208)
HSL	hsl(215, 61%, 53%)
HSV	hsv(215, 70%, 82%)
CMYK	cmyk(69.7%, 40.4%, 0%, 18.4%)
CIE-LAB	lab(51.86, 8.01, -49.15)
CIE-LCH	lch(51.86, 49.80, 279.25°)
OKLab	oklab(58.71% -0.0324 -0.1402)
OKLCH	oklch(58.71% 0.144 257)
XYZ	xyz(20.6386, 20.0240, 62.4396)
Luminance	0.2003 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7CD0 #D0933F

analogous

#3FC4D0 #3F7CD0 #4B3FD0

triadic

#3F7CD0 #D03F7C #7CD03F

tetradic

#3F7CD0 #D03FC4 #D0933F #3FD04B

square

#3F7CD0 #D03FC4 #D0933F #3FD04B

split-complementary

#3F7CD0 #D04B3F #C4D03F

monochromatic

#1D4377 #295FA9 #3F7CD0 #709EDC #A1BFE8

Accessibility & contrast

On white

4.20

#3F7CD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#3F7CD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CD0

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7CD0	#FFFFFF	#000000	##000000
##3F7CD0	1.00	4.20	5.01	5.01
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5583D3

Deuteranopia (green-blind)

#3E75CE

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f7cd0;
/* rgb */ color: rgb(63, 124, 208);
/* oklch */ color: oklch(58.7% 0.144 257.0);

Tailwind

colors: {
  custom: {
    50: '#84a1df',
    500: '#3f7cd0',
    950: '#000000',
  },
}

SCSS

$custom: #3f7cd0;
$custom-light: #84a1df;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7cd0",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 208
  },
  "hsl": {
    "h": 214.759,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58714,
    "c": 0.1439,
    "h": 257
  },
  "luminance": 0.20026
}

Semantic roles & 50–950 ramp

primary

#3F7CD0

secondary

#D5BA96

accent

#A144E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F7CD0

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

Preview Lab → · Contrast checker → · Palette generator →