#CDF8EF
Closest named color: Duck Egg Blue (#C3FBF4). oklch(94.6% 0.046 181.2), rgb(205, 248, 239).
Aa
Black text reads best on this color (18.26:1).
About this color
#CDF8EF is a very light, muted teal or cyan. In OKLCH its lightness is 95%, its chroma 0.046 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.013 away. Black text reads best on it, at 18.26:1.
| Hue family | Teals and cyans |
| Lightness | very light (95%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 18.26:1 |
| White text | 1.14:1 |
Values
| HEX | #CDF8EF |
| RGB | rgb(205, 248, 239) |
| HSL | hsl(167, 75%, 89%) |
| OKLCH | oklch(94.6% 0.046 181.2) |
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 #CDF8EF | 1.14:1 | Fails | Lc -8.2 | Not readable |
| Black text on #CDF8EF | 18.26:1 | AAA | Lc 96.6 | Preferred for body text |
| #CDF8EF text on white | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #CDF8EF text on black | 18.26:1 | AAA | Lc -97.5 | 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)
#CDF8EF
oklch(94.6% 0.046 181.2)
-
Step 200
200
#C3E1DA
oklch(88.6% 0.033 179.9)
-
Step 300
300
#97CEC3
oklch(81% 0.059 181)
-
Step 400
400
#54B4A4
oklch(70.7% 0.094 181.1)
-
Step 500
500
#009F8D
oklch(63% 0.114 181)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C51
oklch(42.6% 0.077 181.1)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#CDF8EF 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) | #F4F3EF | 0.049 |
| Deuteranopia (no green cones) | #ECEDF0 | 0.046 |
| Tritanopia (no blue cones) | #C2FAF5 | 0.013 |
| Achromatopsia (no color) | #EFEFEF | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDF8EF
#CDF8EF
oklch(94.6% 0.046 181.2)
- #FFE6EC
#FFE6EC
oklch(94.7% 0.028 1.3)
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 #CDF8EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.013
- Eggshell Blue #C4FFF7 ΔE 0.019
- Light Light Blue #CAFFFB ΔE 0.020
- Pale Blue #D0FEFE ΔE 0.022
- Ice #D6FFFA ΔE 0.024
- Really Light Blue #D4FFFF ΔE 0.026
- Very Pale Blue #D6FFFE ΔE 0.027
- Very Light Blue #D5FFFF ΔE 0.027
Use #CDF8EF 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.