#307AB7#307AB7

#307AB7 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.3% C 0.119 H 247.0°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX#307AB7
RGBrgb(48, 122, 183)
HSLhsl(207, 58%, 45%)
HSVhsv(207, 74%, 72%)
CMYKcmyk(73.8%, 33.3%, 0%, 28.2%)
CIE-LABlab(49.45, -1.95, -38.70)
CIE-LCHlch(49.45, 38.75, 267.11°)
OKLaboklab(56.26% -0.0466 -0.1098)
OKLCHoklch(56.26% 0.119 247)
XYZxyz(16.7224, 17.9644, 47.3767)
Luminance0.1797 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#307AB7 #B76D30
analogous
#30B7B0 #307AB7 #3036B7
triadic
#307AB7 #B7307A #7AB730
tetradic
#307AB7 #B030B7 #B76D30 #36B730
square
#307AB7 #B030B7 #B76D30 #36B730
split-complementary
#307AB7 #B73036 #B7B030
monochromatic
#173956 #235A87 #307AB7 #5298D2 #83B5DE

Accessibility & contrast

On white

4.57
#307AB7 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.59
#307AB7 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307AB7
4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##307AB7#FFFFFF#000000##000000
##307AB71.004.574.594.59
#FFFFFF4.571.0021.0021.00
#0000004.5921.001.001.00
##0000004.5921.001.001.00

Color blindness preview

Protanopia (red-blind)
#5E7DBA
Deuteranopia (green-blind)
#4B70B6
Tritanopia (blue-blind)
#008990
Achromatopsia (no color)
#767676

Design tokens & code

CSS
--color: #307ab7;
/* rgb */ color: rgb(48, 122, 183);
/* oklch */ color: oklch(56.3% 0.119 247.0);
Tailwind
colors: {
  custom: {
    50: '#7aa0cd',
    500: '#307ab7',
    950: '#000000',
  },
}
SCSS
$custom: #307ab7;
$custom-light: #7aa0cd;
$custom-dark: #000000;
JSON
{
  "hex": "#307ab7",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 183
  },
  "hsl": {
    "h": 207.111,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.56255,
    "c": 0.1193,
    "h": 247
  },
  "luminance": 0.17966
}

Semantic roles & 50–950 ramp

primary
#307AB7
secondary
#C89E7B
accent
#8C46E2
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0A0E13
muted
#7C7E82

Preview Lab

Preview with #307AB7

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

Preview Lab → · Contrast checker → · Palette generator →

#307AB7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva