#C9F181
Closest named color: Pistachio (#C0FA8B). oklch(90.6% 0.146 125.4), rgb(201, 241, 129).
Aa
Black text reads best on this color (16.38:1).
About this color
#C9F181 is a very light, vivid green. In OKLCH its lightness is 91%, its chroma 0.146 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pistachio (#C0FA8B), ΔE 0.023 away. Black text reads best on it, at 16.38:1.
| Hue family | Greens |
| Lightness | very light (91%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Pistachio (#C0FA8B) |
| Black text | 16.38:1 |
| White text | 1.28:1 |
Values
| HEX | #C9F181 |
| RGB | rgb(201, 241, 129) |
| HSL | hsl(81, 80%, 73%) |
| OKLCH | oklch(90.6% 0.146 125.4) |
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 #C9F181 | 1.28:1 | Fails | Lc -16.0 | Dividers and decoration only |
| Black text on #C9F181 | 16.38:1 | AAA | Lc 89.7 | Fine for body text |
| #C9F181 text on white | 1.28:1 | Fails | Lc 13.9 | Not readable |
| #C9F181 text on black | 16.38:1 | AAA | Lc -89.9 | Fine 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 200.
-
Step 50
50
#F1F9E7
oklch(97.1% 0.025 126.5)
-
Step 100
100
#E1F1CA
oklch(93.6% 0.054 125.6)
-
Step 200
200 (this color)
#C9F181
oklch(90.6% 0.146 125.4)
-
Step 300
300
#A4D532
oklch(81% 0.188 125.5)
-
Step 400
400
#87B200
oklch(70.6% 0.178 125.1)
-
Step 500
500
#739900
oklch(63.1% 0.159 125.3)
-
Step 600
600
#608100
oklch(55.7% 0.141 125.5)
-
Step 700
700
#506C00
oklch(49.1% 0.124 125.4)
-
Step 800
800
#415800
oklch(42.6% 0.107 125.2)
-
Step 900
900
#364A00
oklch(37.8% 0.095 125.3)
-
Step 950
950
#1F2C00
oklch(27.1% 0.068 125.1)
#C9F181 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) | #FCE578 | 0.069 |
| Deuteranopia (no green cones) | #F6E387 | 0.069 |
| Tritanopia (no blue cones) | #CFE8D7 | 0.117 |
| Achromatopsia (no color) | #E3E3E3 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9F181
#C9F181
oklch(90.6% 0.146 125.4)
- #E9D7FF
#E9D7FF
oklch(90.6% 0.057 305.6)
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 #C9F181, closest first.
No curated palette has a color within ΔE 0.04 of #C9F181.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pistachio #C0FA8B ΔE 0.023
- Celery #C1FD95 ΔE 0.031
- Light Yellow Green #CCFD7F ΔE 0.033
- Light Pea Green #C4FE82 ΔE 0.034
- Pale Light Green #B1FC99 ΔE 0.036
- Washed Out Green #BCF5A6 ΔE 0.039
- Pale Lime #BEFD73 ΔE 0.040
- Pear #CBF85F ΔE 0.041
Use #C9F181 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.