#9ECF57
Closest named color: Yellow Green (#9ACD32). oklch(79.5% 0.158 128.2), rgb(158, 207, 87).
Aa
Black text reads best on this color (11.51:1).
About this color
#9ECF57 is a light, vivid green. In OKLCH its lightness is 80%, its chroma 0.158 and its hue 128°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.028 away. Black text reads best on it, at 11.51:1.
| Hue family | Greens |
| Lightness | light (80%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 11.51:1 |
| White text | 1.82:1 |
Values
| HEX | #9ECF57 |
| RGB | rgb(158, 207, 87) |
| HSL | hsl(84, 56%, 58%) |
| OKLCH | oklch(79.5% 0.158 128.2) |
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 #9ECF57 | 1.82:1 | Fails | Lc -38.0 | Non-text elements, placeholder text |
| Black text on #9ECF57 | 11.51:1 | AAA | Lc 69.9 | Content text, not long reading |
| #9ECF57 text on white | 1.82:1 | Fails | Lc 33.9 | Non-text elements, placeholder text |
| #9ECF57 text on black | 11.51:1 | AAA | Lc -68.7 | Content text, not long reading |
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 300.
-
Step 50
50
#F1F8EA
oklch(97% 0.02 128.7)
-
Step 100
100
#E1F0D0
oklch(93.6% 0.045 127.8)
-
Step 200
200
#C8E5A6
oklch(88.5% 0.089 128.2)
-
Step 300
300 (this color)
#9ECF57
oklch(79.5% 0.158 128.2)
-
Step 400
400
#7EB500
oklch(70.8% 0.186 128.2)
-
Step 500
500
#6B9B00
oklch(63.1% 0.166 128.3)
-
Step 600
600
#5A8200
oklch(55.6% 0.145 128)
-
Step 700
700
#4B6D00
oklch(49% 0.128 127.9)
-
Step 800
800
#3C5A00
oklch(42.8% 0.113 128.5)
-
Step 900
900
#324B00
oklch(37.8% 0.099 128.2)
-
Step 950
950
#1C2C00
oklch(26.9% 0.07 127.9)
#9ECF57 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) | #D8C24A | 0.079 |
| Deuteranopia (no green cones) | #D1BF5F | 0.080 |
| Tritanopia (no blue cones) | #A3C7B5 | 0.124 |
| Achromatopsia (no color) | #C0C0C0 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #9ECF57
#9ECF57
oklch(79.5% 0.158 128.2)
- #D5A4FF
#D5A4FF
oklch(79.6% 0.135 308.3)
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 #9ECF57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.028
- Slime Green #99CC04 ΔE 0.042
- Light Moss Green #A6C875 ΔE 0.044
- Pea #A4BF20 ΔE 0.046
- Pale Olive Green #B1D27B ΔE 0.047
- Light Olive Green #A4BE5C ΔE 0.048
- Light Olive #ACBF69 ΔE 0.055
- Fresh Green #69D84F ΔE 0.058
Use #9ECF57 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.