#3F80CF#3F80CF

#3F80CF is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.5% C 0.138 H 254.8°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#3F80CF
RGB	rgb(63, 128, 207)
HSL	hsl(213, 60%, 53%)
HSV	hsv(213, 70%, 81%)
CMYK	cmyk(69.6%, 38.2%, 0%, 18.8%)
CIE-LAB	lab(52.95, 5.22, -46.86)
CIE-LCH	lch(52.95, 47.15, 276.35°)
OKLab	oklab(59.54% -0.0364 -0.1334)
OKLCH	oklch(59.54% 0.138 254.8)
XYZ	xyz(21.0274, 20.9979, 61.9642)
Luminance	0.2100 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F80CF #CF8E3F

analogous

#3FC8CF #3F80CF #463FCF

triadic

#3F80CF #CF3F80 #80CF3F

tetradic

#3F80CF #CF3FC8 #CF8E3F #3FCF46

square

#3F80CF #CF3FC8 #CF8E3F #3FCF46

split-complementary

#3F80CF #CF463F #C8CF3F

monochromatic

#1E4576 #2A62A7 #3F80CF #70A0DB #A1C1E7

Accessibility & contrast

On white

4.04

#3F80CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#3F80CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F80CF

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F80CF	#FFFFFF	#000000	##000000
##3F80CF	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C86D2

Deuteranopia (green-blind)

#4678CD

Tritanopia (blue-blind)

#00929D

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3f80cf;
/* rgb */ color: rgb(63, 128, 207);
/* oklch */ color: oklch(59.5% 0.138 254.8);

Tailwind

colors: {
  custom: {
    50: '#84a4de',
    500: '#3f80cf',
    950: '#000000',
  },
}

SCSS

$custom: #3f80cf;
$custom-light: #84a4de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f80cf",
  "rgb": {
    "r": 63,
    "g": 128,
    "b": 207
  },
  "hsl": {
    "h": 212.917,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.59539,
    "c": 0.13831,
    "h": 254.8
  },
  "luminance": 0.21
}

Semantic roles & 50–950 ramp

primary

#3F80CF

secondary

#D4B896

accent

#9C45E3

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F80CF

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

Preview Lab → · Contrast checker → · Palette generator →