#307AB8#307AB8

#307AB8 is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.3% C 0.121 H 247.4°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX#307AB8
RGBrgb(48, 122, 184)
HSLhsl(207, 59%, 45%)
HSVhsv(207, 74%, 72%)
CMYKcmyk(73.9%, 33.7%, 0%, 27.8%)
CIE-LABlab(49.50, -1.59, -39.20)
CIE-LCHlch(49.50, 39.23, 267.68°)
OKLaboklab(56.31% -0.0463 -0.1113)
OKLCHoklch(56.31% 0.121 247.4)
XYZxyz(16.8269, 18.0062, 47.9268)
Luminance0.1801 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#307AB8 #B86E30
analogous
#30B8B2 #307AB8 #3036B8
triadic
#307AB8 #B8307A #7AB830
tetradic
#307AB8 #B230B8 #B86E30 #36B830
square
#307AB8 #B230B8 #B86E30 #36B830
split-complementary
#307AB8 #B83036 #B8B230
monochromatic
#173A57 #235A87 #307AB8 #5398D2 #84B5DF

Accessibility & contrast

On white

4.56
#307AB8 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.60
#307AB8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307AB8
4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##307AB8#FFFFFF#000000##000000
##307AB81.004.564.604.60
#FFFFFF4.561.0021.0021.00
#0000004.6021.001.001.00
##0000004.6021.001.001.00

Color blindness preview

Protanopia (red-blind)
#5E7DBB
Deuteranopia (green-blind)
#4A70B7
Tritanopia (blue-blind)
#008990
Achromatopsia (no color)
#767676

Design tokens & code

CSS
--color: #307ab8;
/* rgb */ color: rgb(48, 122, 184);
/* oklch */ color: oklch(56.3% 0.121 247.4);
Tailwind
colors: {
  custom: {
    50: '#7aa0cd',
    500: '#307ab8',
    950: '#000000',
  },
}
SCSS
$custom: #307ab8;
$custom-light: #7aa0cd;
$custom-dark: #000000;
JSON
{
  "hex": "#307ab8",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 184
  },
  "hsl": {
    "h": 207.353,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.56312,
    "c": 0.12053,
    "h": 247.4
  },
  "luminance": 0.18008
}

Semantic roles & 50–950 ramp

primary
#307AB8
secondary
#C89F7C
accent
#8D46E2
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0E13
muted
#7C7E82

Preview Lab

Preview with #307AB8

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

Preview Lab → · Contrast checker → · Palette generator →

#307AB8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva