#C9F8E6
Closest named color: Duck Egg Blue (#C3FBF4). oklch(94.1% 0.054 169.8), rgb(201, 248, 230).
Aa
Black text reads best on this color (18.05:1).
About this color
#C9F8E6 is a very light, muted green. In OKLCH its lightness is 94%, its chroma 0.054 and its hue 170°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.018 away. Black text reads best on it, at 18.05:1.
| Hue family | Greens |
| Lightness | very light (94%) |
| Chroma | muted (0.054) |
| Temperature | in between |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 18.05:1 |
| White text | 1.16:1 |
Values
| HEX | #C9F8E6 |
| RGB | rgb(201, 248, 230) |
| HSL | hsl(157, 77%, 88%) |
| OKLCH | oklch(94.1% 0.054 169.8) |
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 #C9F8E6 | 1.16:1 | Fails | Lc -9.1 | Not readable |
| Black text on #C9F8E6 | 18.05:1 | AAA | Lc 95.8 | Preferred for body text |
| #C9F8E6 text on white | 1.16:1 | Fails | Lc 7.7 | Not readable |
| #C9F8E6 text on black | 18.05:1 | AAA | Lc -96.6 | 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
#F0F8F4
oklch(97.2% 0.01 164.9)
-
Step 100
100 (this color)
#C9F8E6
oklch(94.1% 0.054 169.8)
-
Step 200
200
#C1E2D5
oklch(88.5% 0.039 169.6)
-
Step 300
300
#93D0BA
oklch(81% 0.07 170.1)
-
Step 400
400
#4BB796
oklch(70.8% 0.111 169.9)
-
Step 500
500
#00A17E
oklch(63.1% 0.125 170.2)
-
Step 600
600
#008869
oklch(55.7% 0.111 169.5)
-
Step 700
700
#007258
oklch(49.1% 0.097 169.9)
-
Step 800
800
#005D48
oklch(42.6% 0.084 170.6)
-
Step 900
900
#004E3B
oklch(37.7% 0.075 169.6)
-
Step 950
950
#002F22
oklch(27.1% 0.054 168.9)
#C9F8E6 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) | #F5F1E5 | 0.056 |
| Deuteranopia (no green cones) | #ECEBE7 | 0.053 |
| Tritanopia (no blue cones) | #BFF9F3 | 0.019 |
| Achromatopsia (no color) | #EEEEEE | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9F8E6
#C9F8E6
oklch(94.1% 0.054 169.8)
- #FFE3EF
#FFE3EF
oklch(94.2% 0.034 350)
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 #C9F8E6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.018
- Pale Aqua #B8FFEB ΔE 0.023
- Eggshell Blue #C4FFF7 ΔE 0.024
- Light Light Blue #CAFFFB ΔE 0.029
- Pale Cyan #B7FFFA ΔE 0.030
- Pale Blue #D0FEFE ΔE 0.034
- Ice #D6FFFA ΔE 0.034
- Pale Sky Blue #BDF6FE ΔE 0.036
Use #C9F8E6 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.