#45B9E9#45B9E9

#45B9E9 is a light, vivid cyan. Relative luminance 0.418; OKLCH L 74.1% C 0.123 H 229.5°. Best body text is #000000 at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#45B9E9
RGB	rgb(69, 185, 233)
HSL	hsl(198, 79%, 59%)
HSV	hsv(198, 70%, 91%)
CMYK	cmyk(70.4%, 20.6%, 0%, 8.6%)
CIE-LAB	lab(70.76, -17.29, -33.35)
CIE-LCH	lch(70.76, 37.57, 242.60°)
OKLab	oklab(74.06% -0.08 -0.0936)
OKLCH	oklch(74.06% 0.123 229.5)
XYZ	xyz(34.5053, 41.8424, 83.3329)
Luminance	0.4185 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#45B9E9 #E97545

analogous

#45E9C7 #45B9E9 #4567E9

triadic

#45B9E9 #E945B9 #B9E945

tetradic

#45B9E9 #C745E9 #E97545 #67E945

square

#45B9E9 #C745E9 #E97545 #67E945

split-complementary

#45B9E9 #E94567 #E9C745

monochromatic

#1377A1 #19A0D7 #45B9E9 #7CCEEF #B2E2F6

Accessibility & contrast

On white

2.24

#45B9E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.37

#45B9E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #45B9E9

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##45B9E9	#FFFFFF	#000000	##000000
##45B9E9	1.00	2.24	9.37	9.37
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.37	21.00	1.00	1.00
##000000	9.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B6EB

Deuteranopia (green-blind)

#8AA6E8

Tritanopia (blue-blind)

#00C6C9

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #45b9e9;
/* rgb */ color: rgb(69, 185, 233);
/* oklch */ color: oklch(74.1% 0.123 229.5);

Tailwind

colors: {
  custom: {
    50: '#8ccef0',
    500: '#45b9e9',
    950: '#000000',
  },
}

SCSS

$custom: #45b9e9;
$custom-light: #8ccef0;
$custom-dark: #000000;

JSON

{
  "hex": "#45b9e9",
  "rgb": {
    "r": 69,
    "g": 185,
    "b": 233
  },
  "hsl": {
    "h": 197.561,
    "s": 78.846,
    "l": 59.216
  },
  "oklch": {
    "l": 0.74058,
    "c": 0.12307,
    "h": 229.5
  },
  "luminance": 0.41846
}

Semantic roles & 50–950 ramp

primary

#45B9E9

secondary

#E5B8A5

accent

#6C32F5

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #45B9E9

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

Preview Lab → · Contrast checker → · Palette generator →