#3980B8#3980B8

#3980B8 is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 58.0% C 0.112 H 245.3°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX#3980B8
RGBrgb(57, 128, 184)
HSLhsl(206, 53%, 47%)
HSVhsv(206, 69%, 72%)
CMYKcmyk(69%, 30.4%, 0%, 27.8%)
CIE-LABlab(51.57, -3.84, -35.92)
CIE-LCHlch(51.57, 36.13, 263.90°)
OKLaboklab(58.02% -0.0466 -0.1016)
OKLCHoklch(58.02% 0.112 245.3)
XYZxyz(18.0550, 19.7670, 48.2020)
Luminance0.1977 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3980B8 #B87139
analogous
#39B8B1 #3980B8 #3940B8
triadic
#3980B8 #B83980 #80B839
tetradic
#3980B8 #B139B8 #B87139 #40B839
square
#3980B8 #B139B8 #B87139 #40B839
split-complementary
#3980B8 #B83940 #B8B139
monochromatic
#1C3F5B #2B5F89 #3980B8 #609ECE #8FBADC

Accessibility & contrast

On white

4.24
#3980B8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.95
#3980B8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3980B8
4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3980B8#FFFFFF#000000##000000
##3980B81.004.244.954.95
#FFFFFF4.241.0021.0021.00
#0000004.9521.001.001.00
##0000004.9521.001.001.00

Color blindness preview

Protanopia (red-blind)
#6782BA
Deuteranopia (green-blind)
#5575B7
Tritanopia (blue-blind)
#008E94
Achromatopsia (no color)
#7B7B7B

Design tokens & code

CSS
--color: #3980b8;
/* rgb */ color: rgb(57, 128, 184);
/* oklch */ color: oklch(58.0% 0.112 245.3);
Tailwind
colors: {
  custom: {
    50: '#7ea4cd',
    500: '#3980b8',
    950: '#000000',
  },
}
SCSS
$custom: #3980b8;
$custom-light: #7ea4cd;
$custom-dark: #000000;
JSON
{
  "hex": "#3980b8",
  "rgb": {
    "r": 57,
    "g": 128,
    "b": 184
  },
  "hsl": {
    "h": 206.457,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.58022,
    "c": 0.11176,
    "h": 245.3
  },
  "luminance": 0.19769
}

Semantic roles & 50–950 ramp

primary
#3980B8
secondary
#C7A386
accent
#8B4CDC
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0B0F13
muted
#7C7F82

Preview Lab

Preview with #3980B8

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

Preview Lab → · Contrast checker → · Palette generator →

#3980B8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva