#306CBD#306CBD

#306CBD is a mid, vivid cyan. Relative luminance 0.150; OKLCH L 53.4% C 0.142 H 256.9°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX#306CBD
RGBrgb(48, 108, 189)
HSLhsl(214, 59%, 46%)
HSVhsv(214, 75%, 74%)
CMYKcmyk(74.6%, 42.9%, 0%, 25.9%)
CIE-LABlab(45.67, 8.89, -48.18)
CIE-LCHlch(45.67, 49.00, 280.46°)
OKLaboklab(53.41% -0.0321 -0.1378)
OKLCHoklch(53.41% 0.142 256.9)
XYZxyz(15.7634, 15.0259, 50.2037)
Luminance0.1503 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#306CBD #BD8130
analogous
#30B3BD #306CBD #3A30BD
triadic
#306CBD #BD306C #6CBD30
tetradic
#306CBD #BD30B3 #BD8130 #30BD3A
square
#306CBD #BD30B3 #BD8130 #30BD3A
split-complementary
#306CBD #BD3A30 #B3BD30
monochromatic
#17345B #24508C #306CBD #568CD4 #87ADE0

Accessibility & contrast

On white

5.24
#306CBD on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.01
#306CBD on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CBD
5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##306CBD#FFFFFF#000000##FFFFFF
##306CBD1.005.244.015.24
#FFFFFF5.241.0021.001.00
#0000004.0121.001.0021.00
##FFFFFF5.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4473C0
Deuteranopia (green-blind)
#2B66BB
Tritanopia (blue-blind)
#007F8B
Achromatopsia (no color)
#6C6C6C

Design tokens & code

CSS
--color: #306cbd;
/* rgb */ color: rgb(48, 108, 189);
/* oklch */ color: oklch(53.4% 0.142 256.9);
Tailwind
colors: {
  custom: {
    50: '#7b95d1',
    500: '#306cbd',
    950: '#000000',
  },
}
SCSS
$custom: #306cbd;
$custom-light: #7b95d1;
$custom-dark: #000000;
JSON
{
  "hex": "#306cbd",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 189
  },
  "hsl": {
    "h": 214.468,
    "s": 59.494,
    "l": 46.471
  },
  "oklch": {
    "l": 0.53406,
    "c": 0.14153,
    "h": 256.9
  },
  "luminance": 0.15028
}

Semantic roles & 50–950 ramp

primary
#306CBD
secondary
#CAAA7F
accent
#A045E3
background
#F8F9FC
surface
#EFF1F9
border
#CACBD2
text
#0B0D14
muted
#7C7E82

Preview Lab

Preview with #306CBD

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

Preview Lab → · Contrast checker → · Palette generator →

#306CBD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva