#A4C859
Closest named color: Light Olive Green (#A4BE5C). oklch(78.3% 0.145 124.6), rgb(164, 200, 89).
Aa
Black text reads best on this color (10.98:1).
About this color
#A4C859 is a light, vivid yellow. In OKLCH its lightness is 78%, its chroma 0.145 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.029 away. Black text reads best on it, at 10.98:1.
| Hue family | Yellows |
| Lightness | light (78%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 10.98:1 |
| White text | 1.91:1 |
Values
| HEX | #A4C859 |
| RGB | rgb(164, 200, 89) |
| HSL | hsl(79, 50%, 57%) |
| OKLCH | oklch(78.3% 0.145 124.6) |
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 #A4C859 | 1.91:1 | Fails | Lc -40.7 | Non-text elements, placeholder text |
| Black text on #A4C859 | 10.98:1 | AAA | Lc 67.5 | Content text, not long reading |
| #A4C859 text on white | 1.91:1 | Fails | Lc 36.4 | Non-text elements, placeholder text |
| #A4C859 text on black | 10.98:1 | AAA | Lc -66.1 | 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
#F2F8EA
oklch(97.1% 0.019 125.8)
-
Step 100
100
#E3EFD1
oklch(93.5% 0.042 125)
-
Step 200
200
#CDE3A9
oklch(88.5% 0.08 124.9)
-
Step 300
300 (this color)
#A4C859
oklch(78.3% 0.145 124.6)
-
Step 400
400
#88B200
oklch(70.7% 0.177 124.8)
-
Step 500
500
#759800
oklch(63% 0.157 124.4)
-
Step 600
600
#618000
oklch(55.5% 0.139 124.8)
-
Step 700
700
#516C00
oklch(49.2% 0.123 125)
-
Step 800
800
#425800
oklch(42.6% 0.107 124.6)
-
Step 900
900
#374900
oklch(37.6% 0.094 124.1)
-
Step 950
950
#1F2C00
oklch(27.1% 0.068 125.1)
#A4C859 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) | #D2BD4E | 0.065 |
| Deuteranopia (no green cones) | #CDBB60 | 0.066 |
| Tritanopia (no blue cones) | #AABFB0 | 0.119 |
| Achromatopsia (no color) | #BBBBBB | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4C859
#A4C859
oklch(78.3% 0.145 124.6)
- #CCA1FF
#CCA1FF
oklch(78.3% 0.137 304.5)
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 #A4C859, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.029
- Light Moss Green #A6C875 ΔE 0.030
- Light Olive #ACBF69 ΔE 0.036
- Pea #A4BF20 ΔE 0.039
- Yellow Green #9ACD32 ΔE 0.040
- Tan Green #A9BE70 ΔE 0.043
- Pale Olive Green #B1D27B ΔE 0.045
- Greenish Tan #BCCB7A ΔE 0.051
Use #A4C859 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.