#45C8DC
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(77% 0.114 209.6), rgb(69, 200, 220).
Aa
Black text reads best on this color (10.54:1).
About this color
#45C8DC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.114 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.030 away. Black text reads best on it, at 10.54:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.54:1 |
| White text | 1.99:1 |
Values
| HEX | #45C8DC |
| RGB | rgb(69, 200, 220) |
| HSL | hsl(188, 68%, 57%) |
| OKLCH | oklch(77% 0.114 209.6) |
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 #45C8DC | 1.99:1 | Fails | Lc -42.6 | Non-text elements, placeholder text |
| Black text on #45C8DC | 10.54:1 | AAA | Lc 65.8 | Content text, not long reading |
| #45C8DC text on white | 1.99:1 | Fails | Lc 38.2 | Non-text elements, placeholder text |
| #45C8DC text on black | 10.54:1 | AAA | Lc -64.2 | Content text, not long reading |
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 300.
-
Step 50
50
#EAF9FB
oklch(97.2% 0.016 206.4)
-
Step 100
100
#D2F0F6
oklch(93.5% 0.032 211.1)
-
Step 200
200
#A8E5F0
oklch(88.4% 0.063 209.9)
-
Step 300
300 (this color)
#45C8DC
oklch(77% 0.114 209.6)
-
Step 400
400
#00B5CA
oklch(70.8% 0.122 209.4)
-
Step 500
500
#009BAD
oklch(63.1% 0.109 209.2)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#45C8DC 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) | #B6C1DD | 0.108 |
| Deuteranopia (no green cones) | #A1B1DC | 0.099 |
| Tritanopia (no blue cones) | #00D1CE | 0.041 |
| Achromatopsia (no color) | #B8B8B8 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45C8DC
#45C8DC
oklch(77% 0.114 209.6)
- #F59889
#F59889
oklch(77.1% 0.115 29.8)
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 #45C8DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.030
- Dark Turquoise #00CED1 ΔE 0.032
- Medium Turquoise #48D1CC ΔE 0.040
- Aqua Blue #02D8E9 ΔE 0.043
- Bright Sky Blue #02CCFE ΔE 0.048
- Lightblue #7BC8F6 ΔE 0.059
- Sky Blue #87CEEB ΔE 0.062
- Deep Sky Blue #00BFFF ΔE 0.066
Use #45C8DC 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.