#45B3DF#45B3DF

#45B3DF is a light, moderate cyan. Relative luminance 0.388; OKLCH L 72.2% C 0.117 H 228.4°. Best body text is #000000 at 8.77:1 contrast (WCAG AA passes).

Color values

HEX#45B3DF
RGBrgb(69, 179, 223)
HSLhsl(197, 71%, 57%)
HSVhsv(197, 69%, 87%)
CMYKcmyk(69.1%, 19.7%, 0%, 12.5%)
CIE-LABlab(68.63, -17.34, -31.20)
CIE-LCHlch(68.63, 35.70, 240.93°)
OKLaboklab(72.22% -0.0777 -0.0874)
OKLCHoklch(72.22% 0.117 228.4)
XYZxyz(31.8883, 38.8296, 75.6120)
Luminance0.3883 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#45B3DF #DF7145
analogous
#45DFBE #45B3DF #4566DF
triadic
#45B3DF #DF45B3 #B3DF45
tetradic
#45B3DF #BE45DF #DF7145 #66DF45
square
#45B3DF #BE45DF #DF7145 #66DF45
split-complementary
#45B3DF #DF4566 #DFBE45
monochromatic
#196E91 #2296C5 #45B3DF #79C8E8 #ADDEF1

Accessibility & contrast

On white

2.40
#45B3DF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.77
#45B3DF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #45B3DF
8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##45B3DF#FFFFFF#000000##000000
##45B3DF1.002.408.778.77
#FFFFFF2.401.0021.0021.00
#0000008.7721.001.001.00
##0000008.7721.001.001.00

Color blindness preview

Protanopia (red-blind)
#9CB0E1
Deuteranopia (green-blind)
#87A1DE
Tritanopia (blue-blind)
#00BFC1
Achromatopsia (no color)
#A7A7A7

Design tokens & code

CSS
--color: #45b3df;
/* rgb */ color: rgb(69, 179, 223);
/* oklch */ color: oklch(72.2% 0.117 228.4);
Tailwind
colors: {
  custom: {
    50: '#8bc9e9',
    500: '#45b3df',
    950: '#000000',
  },
}
SCSS
$custom: #45b3df;
$custom-light: #8bc9e9;
$custom-dark: #000000;
JSON
{
  "hex": "#45b3df",
  "rgb": {
    "r": 69,
    "g": 179,
    "b": 223
  },
  "hsl": {
    "h": 197.143,
    "s": 70.642,
    "l": 57.255
  },
  "oklch": {
    "l": 0.72223,
    "c": 0.11693,
    "h": 228.4
  },
  "luminance": 0.38833
}

Semantic roles & 50–950 ramp

primary
#45B3DF
secondary
#DFB3A1
accent
#6E3AED
background
#F9FCFE
surface
#F1F8FC
border
#CBD1D5
text
#0D1316
muted
#7E8284

Preview Lab

Preview with #45B3DF

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

Preview Lab → · Contrast checker → · Palette generator →

#45B3DF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva