#C9EA81
Closest named color: Pistachio (#C0FA8B). oklch(89% 0.137 123.5), rgb(201, 234, 129).
Aa
Black text reads best on this color (15.56:1).
About this color
#C9EA81 is a light, moderately saturated yellow. In OKLCH its lightness is 89%, its chroma 0.137 and its hue 123°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pistachio (#C0FA8B), ΔE 0.040 away. Black text reads best on it, at 15.56:1.
| Hue family | Yellows |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Pistachio (#C0FA8B) |
| Black text | 15.56:1 |
| White text | 1.34:1 |
Values
| HEX | #C9EA81 |
| RGB | rgb(201, 234, 129) |
| HSL | hsl(79, 71%, 71%) |
| OKLCH | oklch(89% 0.137 123.5) |
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 #C9EA81 | 1.34:1 | Fails | Lc -19.5 | Dividers and decoration only |
| Black text on #C9EA81 | 15.56:1 | AAA | Lc 86.6 | Fine for body text |
| #C9EA81 text on white | 1.34:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #C9EA81 text on black | 15.56:1 | AAA | Lc -86.6 | 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
#F2F8E7
oklch(97% 0.023 122.7)
-
Step 100
100
#E3F0CB
oklch(93.6% 0.051 123.1)
-
Step 200
200 (this color)
#C9EA81
oklch(89% 0.137 123.5)
-
Step 300
300
#ABD23E
oklch(80.9% 0.175 123.3)
-
Step 400
400
#8CB100
oklch(70.7% 0.174 123.3)
-
Step 500
500
#779800
oklch(63.1% 0.156 123.6)
-
Step 600
600
#647F00
oklch(55.5% 0.136 123.2)
-
Step 700
700
#536B00
oklch(49% 0.121 123.6)
-
Step 800
800
#445800
oklch(42.8% 0.106 123.5)
-
Step 900
900
#384900
oklch(37.7% 0.093 123.4)
-
Step 950
950
#202B00
oklch(26.9% 0.066 123.3)
#C9EA81 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) | #F5DF78 | 0.061 |
| Deuteranopia (no green cones) | #F0DE87 | 0.061 |
| Tritanopia (no blue cones) | #D0E1D1 | 0.111 |
| Achromatopsia (no color) | #DEDEDE | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9EA81
#C9EA81
oklch(89% 0.137 123.5)
- #E4D1FF
#E4D1FF
oklch(89.1% 0.065 303.9)
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 #C9EA81, closest first.
No curated palette has a color within ΔE 0.04 of #C9EA81.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pistachio #C0FA8B ΔE 0.040
- Washed Out Green #BCF5A6 ΔE 0.041
- Celery #C1FD95 ΔE 0.047
- Light Sage #BCECAC ΔE 0.048
- Pale Light Green #B1FC99 ΔE 0.048
- Light Pastel Green #B2FBA5 ΔE 0.050
- Light Yellow Green #CCFD7F ΔE 0.052
- Light Pea Green #C4FE82 ΔE 0.053
Use #C9EA81 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.