#307CC0#307CC0

#307CC0 is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.2% C 0.129 H 249.1°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX#307CC0
RGBrgb(48, 124, 192)
HSLhsl(208, 60%, 47%)
HSVhsv(208, 75%, 75%)
CMYKcmyk(75%, 35.4%, 0%, 24.7%)
CIE-LABlab(50.51, 0.13, -42.21)
CIE-LCHlch(50.51, 42.21, 270.17°)
OKLaboklab(57.24% -0.0459 -0.1201)
OKLCHoklch(57.24% 0.129 249.1)
XYZxyz(17.9374, 18.8474, 52.5515)
Luminance0.1885 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#307CC0 #C07430
analogous
#30C0BC #307CC0 #3034C0
triadic
#307CC0 #C0307C #7CC030
tetradic
#307CC0 #BC30C0 #C07430 #34C030
square
#307CC0 #BC30C0 #C07430 #34C030
split-complementary
#307CC0 #C03034 #C0BC30
monochromatic
#183D5E #245C8F #307CC0 #589AD5 #89B8E1

Accessibility & contrast

On white

4.40
#307CC0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.77
#307CC0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307CC0
4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##307CC0#FFFFFF#000000##000000
##307CC01.004.404.774.77
#FFFFFF4.401.0021.0021.00
#0000004.7721.001.001.00
##0000004.7721.001.001.00

Color blindness preview

Protanopia (red-blind)
#5D80C3
Deuteranopia (green-blind)
#4872BF
Tritanopia (blue-blind)
#008C95
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #307cc0;
/* rgb */ color: rgb(48, 124, 192);
/* oklch */ color: oklch(57.2% 0.129 249.1);
Tailwind
colors: {
  custom: {
    50: '#7ca1d3',
    500: '#307cc0',
    950: '#000000',
  },
}
SCSS
$custom: #307cc0;
$custom-light: #7ca1d3;
$custom-dark: #000000;
JSON
{
  "hex": "#307cc0",
  "rgb": {
    "r": 48,
    "g": 124,
    "b": 192
  },
  "hsl": {
    "h": 208.333,
    "s": 60,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57236,
    "c": 0.12855,
    "h": 249.1
  },
  "luminance": 0.18849
}

Semantic roles & 50–950 ramp

primary
#307CC0
secondary
#CBA480
accent
#8F45E3
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0E14
muted
#7C7E83

Preview Lab

Preview with #307CC0

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

Preview Lab → · Contrast checker → · Palette generator →

#307CC0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva