#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
RGB	rgb(69, 179, 223)
HSL	hsl(197, 71%, 57%)
HSV	hsv(197, 69%, 87%)
CMYK	cmyk(69.1%, 19.7%, 0%, 12.5%)
CIE-LAB	lab(68.63, -17.34, -31.20)
CIE-LCH	lch(68.63, 35.70, 240.93°)
OKLab	oklab(72.22% -0.0777 -0.0874)
OKLCH	oklch(72.22% 0.117 228.4)
XYZ	xyz(31.8883, 38.8296, 75.6120)
Luminance	0.3883 (WCAG relative)
Temperature	cool
Family	cyan

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
##45B3DF	1.00	2.40	8.77	8.77
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.77	21.00	1.00	1.00
##000000	8.77	21.00	1.00	1.00

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 →