#307DB7#307DB7

#307DB7 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 57.0% C 0.117 H 244.9°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX#307DB7
RGBrgb(48, 125, 183)
HSLhsl(206, 58%, 45%)
HSVhsv(206, 74%, 72%)
CMYKcmyk(73.8%, 31.7%, 0%, 28.2%)
CIE-LABlab(50.35, -3.74, -37.29)
CIE-LCHlch(50.35, 37.48, 264.27°)
OKLaboklab(56.96% -0.0495 -0.1057)
OKLCHoklch(56.96% 0.117 244.9)
XYZxyz(17.0965, 18.7126, 47.5014)
Luminance0.1872 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#307DB7 #B76A30
analogous
#30B7AE #307DB7 #3039B7
triadic
#307DB7 #B7307D #7DB730
tetradic
#307DB7 #AE30B7 #B76A30 #39B730
square
#307DB7 #AE30B7 #B76A30 #39B730
split-complementary
#307DB7 #B73039 #B7AE30
monochromatic
#173B56 #235C87 #307DB7 #529BD2 #83B7DE

Accessibility & contrast

On white

4.43
#307DB7 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.74
#307DB7 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307DB7
4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##307DB7#FFFFFF#000000##000000
##307DB71.004.434.744.74
#FFFFFF4.431.0021.0021.00
#0000004.7421.001.001.00
##0000004.7421.001.001.00

Color blindness preview

Protanopia (red-blind)
#627FBA
Deuteranopia (green-blind)
#5072B6
Tritanopia (blue-blind)
#008B92
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #307db7;
/* rgb */ color: rgb(48, 125, 183);
/* oklch */ color: oklch(57.0% 0.117 244.9);
Tailwind
colors: {
  custom: {
    50: '#7aa2cd',
    500: '#307db7',
    950: '#000000',
  },
}
SCSS
$custom: #307db7;
$custom-light: #7aa2cd;
$custom-dark: #000000;
JSON
{
  "hex": "#307db7",
  "rgb": {
    "r": 48,
    "g": 125,
    "b": 183
  },
  "hsl": {
    "h": 205.778,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.56962,
    "c": 0.11668,
    "h": 244.9
  },
  "luminance": 0.18715
}

Semantic roles & 50–950 ramp

primary
#307DB7
secondary
#C89C7B
accent
#8946E2
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0A0F13
muted
#7C7E82

Preview Lab

Preview with #307DB7

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

Preview Lab → · Contrast checker → · Palette generator →

#307DB7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva