#C9EFDE
Closest named color: Duck Egg Blue (#C3FBF4). oklch(92% 0.046 166.5), rgb(201, 239, 222).
Aa
Black text reads best on this color (16.88:1).
About this color
#C9EFDE is a very light, muted green. In OKLCH its lightness is 92%, its chroma 0.046 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.035 away. Black text reads best on it, at 16.88:1.
| Hue family | Greens |
| Lightness | very light (92%) |
| Chroma | muted (0.046) |
| Temperature | in between |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 16.88:1 |
| White text | 1.24:1 |
Values
| HEX | #C9EFDE |
| RGB | rgb(201, 239, 222) |
| HSL | hsl(153, 54%, 86%) |
| OKLCH | oklch(92% 0.046 166.5) |
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 #C9EFDE | 1.24:1 | Fails | Lc -14.0 | Not readable |
| Black text on #C9EFDE | 16.88:1 | AAA | Lc 91.5 | Preferred for body text |
| #C9EFDE text on white | 1.24:1 | Fails | Lc 12.1 | Not readable |
| #C9EFDE text on black | 16.88:1 | AAA | Lc -91.9 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100 (this color)
#C9EFDE
oklch(92% 0.046 166.5)
-
Step 200
200
#C6E0D4
oklch(88.4% 0.032 166.2)
-
Step 300
300
#9DCDB8
oklch(80.8% 0.058 166.3)
-
Step 400
400
#62B394
oklch(70.6% 0.093 166.9)
-
Step 500
500
#25A079
oklch(63.1% 0.12 166.4)
-
Step 600
600
#008864
oklch(55.6% 0.115 166.4)
-
Step 700
700
#007254
oklch(49% 0.101 166.9)
-
Step 800
800
#005E44
oklch(42.7% 0.088 166.3)
-
Step 900
900
#004E38
oklch(37.6% 0.078 166.4)
-
Step 950
950
#072E21
oklch(27% 0.049 166.4)
#C9EFDE 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) | #EDE9DD | 0.046 |
| Deuteranopia (no green cones) | #E6E4DF | 0.045 |
| Tritanopia (no blue cones) | #C2EFEA | 0.017 |
| Achromatopsia (no color) | #E6E6E6 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9EFDE
#C9EFDE
oklch(92% 0.046 166.5)
- #FDD9EB
#FDD9EB
oklch(92% 0.046 346.4)
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 #C9EFDE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.035
- Pale Turquoise #AFEEEE ΔE 0.035
- Pale Silver #D8E2DC ΔE 0.037
- Pale Sky Blue #BDF6FE ΔE 0.041
- Pale Aqua #B8FFEB ΔE 0.041
- Eggshell Blue #C4FFF7 ΔE 0.044
- Platinum #E0E1DD ΔE 0.044
- Diamond #B9F2FF ΔE 0.044
Use #C9EFDE 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.