#3F7ECF#3F7ECF

#3F7ECF is a mid, vivid cyan. Relative luminance 0.205; OKLCH L 59.1% C 0.140 H 255.8°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F7ECF
RGB	rgb(63, 126, 207)
HSL	hsl(214, 60%, 53%)
HSV	hsv(214, 70%, 81%)
CMYK	cmyk(69.6%, 39.1%, 0%, 18.8%)
CIE-LAB	lab(52.38, 6.43, -47.77)
CIE-LCH	lch(52.38, 48.20, 277.67°)
OKLab	oklab(59.1% -0.0345 -0.1361)
OKLCH	oklch(59.1% 0.14 255.8)
XYZ	xyz(20.7691, 20.4813, 61.8781)
Luminance	0.2048 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7ECF #CF903F

analogous

#3FC6CF #3F7ECF #483FCF

triadic

#3F7ECF #CF3F7E #7ECF3F

tetradic

#3F7ECF #CF3FC6 #CF903F #3FCF48

square

#3F7ECF #CF3FC6 #CF903F #3FCF48

split-complementary

#3F7ECF #CF483F #C6CF3F

monochromatic

#1E4476 #2A61A7 #3F7ECF #709FDB #A1C0E7

Accessibility & contrast

On white

4.12

#3F7ECF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#3F7ECF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7ECF

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7ECF	#FFFFFF	#000000	##000000
##3F7ECF	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5984D2

Deuteranopia (green-blind)

#4377CD

Tritanopia (blue-blind)

#00919C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3f7ecf;
/* rgb */ color: rgb(63, 126, 207);
/* oklch */ color: oklch(59.1% 0.140 255.8);

Tailwind

colors: {
  custom: {
    50: '#84a2de',
    500: '#3f7ecf',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ecf;
$custom-light: #84a2de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ecf",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 207
  },
  "hsl": {
    "h": 213.75,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.59095,
    "c": 0.14043,
    "h": 255.8
  },
  "luminance": 0.20483
}

Semantic roles & 50–950 ramp

primary

#3F7ECF

secondary

#D4B996

accent

#9E45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #3F7ECF

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

Preview Lab → · Contrast checker → · Palette generator →