#3F80AB#3F80AB

#3F80AB is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.6% C 0.094 H 240.1°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#3F80AB
RGB	rgb(63, 128, 171)
HSL	hsl(204, 46%, 46%)
HSV	hsv(204, 63%, 67%)
CMYK	cmyk(63.2%, 25.1%, 0%, 32.9%)
CIE-LAB	lab(51.19, -7.26, -29.01)
CIE-LCH	lch(51.19, 29.90, 255.95°)
OKLab	oklab(57.58% -0.0468 -0.0815)
OKLCH	oklch(57.58% 0.094 240.1)
XYZ	xyz(17.1170, 19.4337, 41.3692)
Luminance	0.1943 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F80AB #AB6A3F

analogous

#3FABA0 #3F80AB #3F4AAB

triadic

#3F80AB #AB3F80 #80AB3F

tetradic

#3F80AB #A03FAB #AB6A3F #4AAB3F

square

#3F80AB #A03FAB #AB6A3F #4AAB3F

split-complementary

#3F80AB #AB3F4A #ABA03F

monochromatic

#1E3D52 #2F5F7E #3F80AB #629EC5 #8FB9D6

Accessibility & contrast

On white

4.30

#3F80AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#3F80AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F80AB

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F80AB	#FFFFFF	#000000	##000000
##3F80AB	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C80AD

Deuteranopia (green-blind)

#5E75AA

Tritanopia (blue-blind)

#008B8F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f80ab;
/* rgb */ color: rgb(63, 128, 171);
/* oklch */ color: oklch(57.6% 0.094 240.1);

Tailwind

colors: {
  custom: {
    50: '#7ea4c4',
    500: '#3f80ab',
    950: '#000000',
  },
}

SCSS

$custom: #3f80ab;
$custom-light: #7ea4c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f80ab",
  "rgb": {
    "r": 63,
    "g": 128,
    "b": 171
  },
  "hsl": {
    "h": 203.889,
    "s": 46.154,
    "l": 45.882
  },
  "oklch": {
    "l": 0.57584,
    "c": 0.09395,
    "h": 240.1
  },
  "luminance": 0.19435
}

Semantic roles & 50–950 ramp

primary

#3F80AB

secondary

#C19D85

accent

#8652D6

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #3F80AB

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

Preview Lab → · Contrast checker → · Palette generator →