#3F7ECD#3F7ECD

#3F7ECD is a mid, vivid cyan. Relative luminance 0.204; OKLCH L 59.0% C 0.138 H 255.3°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#3F7ECD
RGB	rgb(63, 126, 205)
HSL	hsl(213, 59%, 53%)
HSV	hsv(213, 69%, 80%)
CMYK	cmyk(69.3%, 38.5%, 0%, 19.6%)
CIE-LAB	lab(52.27, 5.72, -46.81)
CIE-LCH	lch(52.27, 47.16, 276.97°)
OKLab	oklab(58.98% -0.0349 -0.1333)
OKLCH	oklch(58.98% 0.138 255.3)
XYZ	xyz(20.5262, 20.3841, 60.5985)
Luminance	0.2039 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7ECD #CD8E3F

analogous

#3FC5CD #3F7ECD #473FCD

triadic

#3F7ECD #CD3F7E #7ECD3F

tetradic

#3F7ECD #CD3FC5 #CD8E3F #3FCD47

square

#3F7ECD #CD3FC5 #CD8E3F #3FCD47

split-complementary

#3F7ECD #CD473F #C5CD3F

monochromatic

#1E4474 #2B61A4 #3F7ECD #709FDA #A0BFE6

Accessibility & contrast

On white

4.14

#3F7ECD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#3F7ECD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7ECD

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7ECD	#FFFFFF	#000000	##000000
##3F7ECD	1.00	4.14	5.08	5.08
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A84D0

Deuteranopia (green-blind)

#4477CB

Tritanopia (blue-blind)

#00909B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3f7ecd;
/* rgb */ color: rgb(63, 126, 205);
/* oklch */ color: oklch(59.0% 0.138 255.3);

Tailwind

colors: {
  custom: {
    50: '#84a2dd',
    500: '#3f7ecd',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ecd;
$custom-light: #84a2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ecd",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 205
  },
  "hsl": {
    "h": 213.38,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.58975,
    "c": 0.1378,
    "h": 255.3
  },
  "luminance": 0.20386
}

Semantic roles & 50–950 ramp

primary

#3F7ECD

secondary

#D3B795

accent

#9D46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #3F7ECD

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

Preview Lab → · Contrast checker → · Palette generator →