#3F80CE#3F80CE

#3F80CE is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.5% C 0.137 H 254.5°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#3F80CE
RGB	rgb(63, 128, 206)
HSL	hsl(213, 59%, 53%)
HSV	hsv(213, 69%, 81%)
CMYK	cmyk(69.4%, 37.9%, 0%, 19.2%)
CIE-LAB	lab(52.89, 4.86, -46.38)
CIE-LCH	lch(52.89, 46.64, 275.98°)
OKLab	oklab(59.48% -0.0366 -0.132)
OKLCH	oklch(59.48% 0.137 254.5)
XYZ	xyz(20.9056, 20.9491, 61.3224)
Luminance	0.2095 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F80CE #CE8D3F

analogous

#3FC8CE #3F80CE #453FCE

triadic

#3F80CE #CE3F80 #80CE3F

tetradic

#3F80CE #CE3FC8 #CE8D3F #3FCE45

square

#3F80CE #CE3FC8 #CE8D3F #3FCE45

split-complementary

#3F80CE #CE453F #C8CE3F

monochromatic

#1E4575 #2A62A6 #3F80CE #70A0DA #A1C1E7

Accessibility & contrast

On white

4.05

#3F80CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#3F80CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F80CE

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F80CE	#FFFFFF	#000000	##000000
##3F80CE	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D86D1

Deuteranopia (green-blind)

#4778CC

Tritanopia (blue-blind)

#00929D

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3f80ce;
/* rgb */ color: rgb(63, 128, 206);
/* oklch */ color: oklch(59.5% 0.137 254.5);

Tailwind

colors: {
  custom: {
    50: '#84a4dd',
    500: '#3f80ce',
    950: '#000000',
  },
}

SCSS

$custom: #3f80ce;
$custom-light: #84a4dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f80ce",
  "rgb": {
    "r": 63,
    "g": 128,
    "b": 206
  },
  "hsl": {
    "h": 212.727,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.5948,
    "c": 0.13701,
    "h": 254.5
  },
  "luminance": 0.20951
}

Semantic roles & 50–950 ramp

primary

#3F80CE

secondary

#D3B795

accent

#9B45E3

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F80CE

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

Preview Lab → · Contrast checker → · Palette generator →