#CDF6EF
Closest named color: Duck Egg Blue (#C3FBF4). oklch(94.2% 0.043 183.9), rgb(205, 246, 239).
Aa
Black text reads best on this color (18.02:1).
About this color
#CDF6EF is a very light, muted teal or cyan. In OKLCH its lightness is 94%, its chroma 0.043 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.015 away. Black text reads best on it, at 18.02:1.
| Hue family | Teals and cyans |
| Lightness | very light (94%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 18.02:1 |
| White text | 1.16:1 |
Values
| HEX | #CDF6EF |
| RGB | rgb(205, 246, 239) |
| HSL | hsl(170, 69%, 88%) |
| OKLCH | oklch(94.2% 0.043 183.9) |
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 #CDF6EF | 1.16:1 | Fails | Lc -9.2 | Not readable |
| Black text on #CDF6EF | 18.02:1 | AAA | Lc 95.7 | Preferred for body text |
| #CDF6EF text on white | 1.16:1 | Fails | Lc 7.8 | Not readable |
| #CDF6EF text on black | 18.02:1 | AAA | Lc -96.5 | 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
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100 (this color)
#CDF6EF
oklch(94.2% 0.043 183.9)
-
Step 200
200
#C4E0DB
oklch(88.5% 0.03 183.7)
-
Step 300
300
#99CDC4
oklch(80.9% 0.056 183.1)
-
Step 400
400
#58B3A7
oklch(70.7% 0.089 184.1)
-
Step 500
500
#009F91
oklch(63.1% 0.112 184)
-
Step 600
600
#00867A
oklch(55.7% 0.099 183.9)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#012E29
oklch(27.1% 0.047 183.5)
#CDF6EF 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) | #F2F1EF | 0.047 |
| Deuteranopia (no green cones) | #EAEBF0 | 0.044 |
| Tritanopia (no blue cones) | #C2F8F4 | 0.013 |
| Achromatopsia (no color) | #EEEEEE | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDF6EF
#CDF6EF
oklch(94.2% 0.043 183.9)
- #FFE4E9
#FFE4E9
oklch(94.2% 0.03 5)
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 #CDF6EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.015
- Eggshell Blue #C4FFF7 ΔE 0.023
- Light Light Blue #CAFFFB ΔE 0.024
- Pale Blue #D0FEFE ΔE 0.025
- Pale Sky Blue #BDF6FE ΔE 0.026
- Ice #D6FFFA ΔE 0.028
- Really Light Blue #D4FFFF ΔE 0.029
- Very Pale Blue #D6FFFE ΔE 0.030
Use #CDF6EF 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.