#C9F9E6
Closest named color: Duck Egg Blue (#C3FBF4). oklch(94.4% 0.055 169.1), rgb(201, 249, 230).
Aa
Black text reads best on this color (18.17:1).
About this color
#C9F9E6 is a very light, muted green. In OKLCH its lightness is 94%, its chroma 0.055 and its hue 169°. 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 18.17:1.
| Hue family | Greens |
| Lightness | very light (94%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 18.17:1 |
| White text | 1.15:1 |
Values
| HEX | #C9F9E6 |
| RGB | rgb(201, 249, 230) |
| HSL | hsl(156, 80%, 88%) |
| OKLCH | oklch(94.4% 0.055 169.1) |
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 #C9F9E6 | 1.15:1 | Fails | Lc -8.6 | Not readable |
| Black text on #C9F9E6 | 18.17:1 | AAA | Lc 96.3 | Preferred for body text |
| #C9F9E6 text on white | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #C9F9E6 text on black | 18.17:1 | AAA | Lc -97.1 | 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)
#C9F9E6
oklch(94.4% 0.055 169.1)
-
Step 200
200
#C1E2D5
oklch(88.5% 0.039 169.6)
-
Step 300
300
#92D0B9
oklch(80.9% 0.071 169.4)
-
Step 400
400
#49B794
oklch(70.6% 0.114 168.9)
-
Step 500
500
#00A17C
oklch(63% 0.126 169.1)
-
Step 600
600
#008868
oklch(55.7% 0.112 168.9)
-
Step 700
700
#007257
oklch(49.1% 0.098 169.1)
-
Step 800
800
#005E47
oklch(42.8% 0.086 168.9)
-
Step 900
900
#004E3B
oklch(37.7% 0.075 169.6)
-
Step 950
950
#002F22
oklch(27.1% 0.054 168.9)
#C9F9E6 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) | #F6F2E5 | 0.057 |
| Deuteranopia (no green cones) | #EDECE7 | 0.054 |
| Tritanopia (no blue cones) | #BFFAF3 | 0.019 |
| Achromatopsia (no color) | #EEEEEE | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9F9E6
#C9F9E6
oklch(94.4% 0.055 169.1)
- #FFE4F0
#FFE4F0
oklch(94.4% 0.033 349.1)
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 #C9F9E6, 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 0.022
- Eggshell Blue #C4FFF7 ΔE 0.023
- Light Light Blue #CAFFFB ΔE 0.028
- Pale Cyan #B7FFFA ΔE 0.029
- Ice #D6FFFA ΔE 0.033
- Pale Blue #D0FEFE ΔE 0.033
- Really Light Blue #D4FFFF ΔE 0.037
Use #C9F9E6 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.