#3F7ECC#3F7ECC

#3F7ECC is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.9% C 0.137 H 255.1°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#3F7ECC
RGB	rgb(63, 126, 204)
HSL	hsl(213, 58%, 52%)
HSV	hsv(213, 69%, 80%)
CMYK	cmyk(69.1%, 38.2%, 0%, 20%)
CIE-LAB	lab(52.22, 5.36, -46.32)
CIE-LCH	lch(52.22, 46.63, 276.60°)
OKLab	oklab(58.92% -0.0352 -0.1319)
OKLCH	oklch(58.92% 0.137 255.1)
XYZ	xyz(20.4058, 20.3360, 59.9648)
Luminance	0.2034 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7ECC #CC8D3F

analogous

#3FC5CC #3F7ECC #463FCC

triadic

#3F7ECC #CC3F7E #7ECC3F

tetradic

#3F7ECC #CC3FC5 #CC8D3F #3FCC46

square

#3F7ECC #CC3FC5 #CC8D3F #3FCC46

split-complementary

#3F7ECC #CC463F #C5CC3F

monochromatic

#1E4472 #2B61A3 #3F7ECC #6F9ED9 #A0BFE6

Accessibility & contrast

On white

4.14

#3F7ECC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#3F7ECC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7ECC

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7ECC	#FFFFFF	#000000	##000000
##3F7ECC	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B84CF

Deuteranopia (green-blind)

#4577CA

Tritanopia (blue-blind)

#00909B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3f7ecc;
/* rgb */ color: rgb(63, 126, 204);
/* oklch */ color: oklch(58.9% 0.137 255.1);

Tailwind

colors: {
  custom: {
    50: '#84a2dc',
    500: '#3f7ecc',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ecc;
$custom-light: #84a2dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ecc",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 204
  },
  "hsl": {
    "h": 213.191,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58916,
    "c": 0.1365,
    "h": 255.1
  },
  "luminance": 0.20338
}

Semantic roles & 50–950 ramp

primary

#3F7ECC

secondary

#D2B795

accent

#9C47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #3F7ECC

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

Preview Lab → · Contrast checker → · Palette generator →