#C3FDEF
Closest named color: Duck Egg Blue (#C3FBF4). oklch(95.1% 0.061 178.5), rgb(195, 253, 239).
Aa
Black text reads best on this color (18.61:1).
About this color
#C3FDEF is a very light, muted teal or cyan. In OKLCH its lightness is 95%, its chroma 0.061 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.010 away. Black text reads best on it, at 18.61:1.
| Hue family | Teals and cyans |
| Lightness | very light (95%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 18.61:1 |
| White text | 1.12:1 |
Values
| HEX | #C3FDEF |
| RGB | rgb(195, 253, 239) |
| HSL | hsl(166, 94%, 88%) |
| OKLCH | oklch(95.1% 0.061 178.5) |
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 #C3FDEF | 1.12:1 | Fails | Lc 0.0 | Not readable |
| Black text on #C3FDEF | 18.61:1 | AAA | Lc 97.8 | Preferred for body text |
| #C3FDEF text on white | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #C3FDEF text on black | 18.61:1 | AAA | Lc -98.8 | Preferred for body text |
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 100.
-
Step 50
50
#EEF8F5
oklch(97.1% 0.011 176.3)
-
Step 100
100 (this color)
#C3FDEF
oklch(95.1% 0.061 178.5)
-
Step 200
200
#BBE3D9
oklch(88.4% 0.044 178.4)
-
Step 300
300
#86D2C1
oklch(80.9% 0.08 178.4)
-
Step 400
400
#17BAA1
oklch(70.8% 0.127 178.2)
-
Step 500
500
#00A08A
oklch(63.2% 0.116 178.3)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950
#002E27
oklch(27% 0.049 179.5)
#C3FDEF 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) | #F8F6EE | 0.065 |
| Deuteranopia (no green cones) | #EDEEF0 | 0.061 |
| Tritanopia (no blue cones) | #B4FFF9 | 0.018 |
| Achromatopsia (no color) | #F1F1F1 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C3FDEF
#C3FDEF
oklch(95.1% 0.061 178.5)
- #FFE8EE
#FFE8EE
oklch(95.1% 0.026 359.9)
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 #C3FDEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.010
- Eggshell Blue #C4FFF7 ΔE 0.011
- Pale Aqua #B8FFEB ΔE 0.015
- Pale Cyan #B7FFFA ΔE 0.017
- Light Light Blue #CAFFFB ΔE 0.019
- Pale Blue #D0FEFE ΔE 0.026
- Ice #D6FFFA ΔE 0.028
- Really Light Blue #D4FFFF ΔE 0.031
Use #C3FDEF 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.