#C9F9E4
Closest named color: Duck Egg Blue (#C3FBF4). oklch(94.3% 0.057 166.7), rgb(201, 249, 228).
Aa
Black text reads best on this color (18.15:1).
About this color
#C9F9E4 is a very light, muted green. In OKLCH its lightness is 94%, its chroma 0.057 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 0.021 away. Black text reads best on it, at 18.15:1.
| Hue family | Greens |
| Lightness | very light (94%) |
| Chroma | muted (0.057) |
| Temperature | in between |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 18.15:1 |
| White text | 1.15:1 |
Values
| HEX | #C9F9E4 |
| RGB | rgb(201, 249, 228) |
| HSL | hsl(154, 80%, 88%) |
| OKLCH | oklch(94.3% 0.057 166.7) |
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 #C9F9E4 | 1.15:1 | Fails | Lc -8.7 | Not readable |
| Black text on #C9F9E4 | 18.15:1 | AAA | Lc 96.2 | Preferred for body text |
| #C9F9E4 text on white | 1.15:1 | Fails | Lc 7.3 | Not readable |
| #C9F9E4 text on black | 18.15:1 | AAA | Lc -97.0 | 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)
#C9F9E4
oklch(94.3% 0.057 166.7)
-
Step 200
200
#C1E2D3
oklch(88.5% 0.04 166.2)
-
Step 300
300
#93D0B6
oklch(80.9% 0.073 166.3)
-
Step 400
400
#49B891
oklch(70.8% 0.117 166.7)
-
Step 500
500
#00A278
oklch(63.2% 0.13 166.5)
-
Step 600
600
#008865
oklch(55.6% 0.114 167)
-
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
#002F20
oklch(27.1% 0.056 165.8)
#C9F9E4 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) | #F7F2E3 | 0.058 |
| Deuteranopia (no green cones) | #EEECE5 | 0.055 |
| Tritanopia (no blue cones) | #BFF9F3 | 0.022 |
| Achromatopsia (no color) | #EEEEEE | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9F9E4
#C9F9E4
oklch(94.3% 0.057 166.7)
- #FFE3F1
#FFE3F1
oklch(94.3% 0.036 346.1)
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 #C9F9E4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.021
- Pale Aqua #B8FFEB ΔE 0.022
- Eggshell Blue #C4FFF7 ΔE 0.025
- Light Light Blue #CAFFFB ΔE 0.030
- Pale Cyan #B7FFFA ΔE 0.031
- Ice #D6FFFA ΔE 0.035
- Pale Blue #D0FEFE ΔE 0.036
- Really Light Blue #D4FFFF ΔE 0.039
Use #C9F9E4 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.