#307BC7#307BC7

#307BC7 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.4% C 0.138 H 251.8°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX#307BC7
RGBrgb(48, 123, 199)
HSLhsl(210, 61%, 48%)
HSVhsv(210, 76%, 78%)
CMYKcmyk(75.9%, 38.2%, 0%, 22%)
CIE-LABlab(50.59, 3.30, -46.09)
CIE-LCHlch(50.59, 46.21, 274.10°)
OKLaboklab(57.42% -0.0432 -0.1314)
OKLCHoklch(57.42% 0.138 251.8)
XYZxyz(18.6068, 18.9157, 56.6922)
Luminance0.1892 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#307BC7 #C77C30
analogous
#30C6C7 #307BC7 #3030C7
triadic
#307BC7 #C7307B #7BC730
tetradic
#307BC7 #C730C6 #C77C30 #30C730
square
#307BC7 #C730C6 #C77C30 #30C730
split-complementary
#307BC7 #C73030 #C6C730
monochromatic
#183E64 #245D96 #307BC7 #5C9AD8 #8EB8E4

Accessibility & contrast

On white

4.39
#307BC7 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.78
#307BC7 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BC7
4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##307BC7#FFFFFF#000000##000000
##307BC71.004.394.784.78
#FFFFFF4.391.0021.0021.00
#0000004.7821.001.001.00
##0000004.7821.001.001.00

Color blindness preview

Protanopia (red-blind)
#5780CA
Deuteranopia (green-blind)
#4072C5
Tritanopia (blue-blind)
#008D97
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #307bc7;
/* rgb */ color: rgb(48, 123, 199);
/* oklch */ color: oklch(57.4% 0.138 251.8);
Tailwind
colors: {
  custom: {
    50: '#7da0d8',
    500: '#307bc7',
    950: '#000000',
  },
}
SCSS
$custom: #307bc7;
$custom-light: #7da0d8;
$custom-dark: #000000;
JSON
{
  "hex": "#307bc7",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 199
  },
  "hsl": {
    "h": 210.199,
    "s": 61.134,
    "l": 48.431
  },
  "oklch": {
    "l": 0.5742,
    "c": 0.13836,
    "h": 251.8
  },
  "luminance": 0.18918
}

Semantic roles & 50–950 ramp

primary
#307BC7
secondary
#CEAA85
accent
#9444E4
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0E14
muted
#7C7E83

Preview Lab

Preview with #307BC7

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

Preview Lab → · Contrast checker → · Palette generator →

#307BC7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva