#45B8D9
Closest named color: Turquoise Blue (#06B1C4). oklch(73.1% 0.112 220.6), rgb(69, 184, 217).
Aa
Black text reads best on this color (9.11:1).
About this color
#45B8D9 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.112 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.044 away. Black text reads best on it, at 9.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.11:1 |
| White text | 2.30:1 |
Values
| HEX | #45B8D9 |
| RGB | rgb(69, 184, 217) |
| HSL | hsl(193, 66%, 56%) |
| OKLCH | oklch(73.1% 0.112 220.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #45B8D9 | 2.30:1 | Fails | Lc -50.0 | Large or bold text, headings |
| Black text on #45B8D9 | 9.11:1 | AAA | Lc 58.8 | Large or bold text, headings |
| #45B8D9 text on white | 2.30:1 | Fails | Lc 45.1 | Large or bold text, headings |
| #45B8D9 text on black | 9.11:1 | AAA | Lc -57.0 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DCEDF3
oklch(93.5% 0.02 220.9)
-
Step 200
200
#BEE0EB
oklch(88.6% 0.039 219.3)
-
Step 300
300
#8DCCE0
oklch(81% 0.07 219.7)
-
Step 400
400 (this color)
#45B8D9
oklch(73.1% 0.112 220.6)
-
Step 500
500
#0099BA
oklch(63.2% 0.115 220.3)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#004A5B
oklch(37.8% 0.069 219.8)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#45B8D9 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #A4B3DB | 0.093 |
| Deuteranopia (no green cones) | #8FA4D9 | 0.082 |
| Tritanopia (no blue cones) | #00C3C2 | 0.057 |
| Achromatopsia (no color) | #ABABAB | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45B8D9
#45B8D9
oklch(73.1% 0.112 220.6)
- #E48F71
#E48F71
oklch(73.1% 0.112 40.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #45B8D9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.044
- Vivid Sky Blue #4CC9F0 ΔE 0.052
- Deep Sky Blue #00BFFF ΔE 0.054
- Bright Sky Blue #02CCFE ΔE 0.065
- Dark Turquoise #00CED1 ΔE 0.068
- Topaz #13BBAF ΔE 0.071
- Light Sea Green #20B2AA ΔE 0.073
- Greyblue #77A1B5 ΔE 0.074
Use #45B8D9 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.