#A4C400
Closest named color: Pea (#A4BF20). oklch(76.9% 0.184 120.8), rgb(164, 196, 0).
Aa
Black text reads best on this color (10.47:1).
About this color
#A4C400 is a medium-light, vivid yellow. In OKLCH its lightness is 77%, its chroma 0.184 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pea (#A4BF20), ΔE 0.017 away. Black text reads best on it, at 10.47:1.
| Hue family | Yellows |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.184) |
| Temperature | in between |
| Nearest name | Pea (#A4BF20) |
| Black text | 10.47:1 |
| White text | 2.00:1 |
Values
| HEX | #A4C400 |
| RGB | rgb(164, 196, 0) |
| HSL | hsl(70, 100%, 38%) |
| OKLCH | oklch(76.9% 0.184 120.8) |
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 #A4C400 | 2.00:1 | Fails | Lc -43.1 | Non-text elements, placeholder text |
| Black text on #A4C400 | 10.47:1 | AAA | Lc 65.3 | Content text, not long reading |
| #A4C400 text on white | 2.00:1 | Fails | Lc 38.6 | Non-text elements, placeholder text |
| #A4C400 text on black | 10.47:1 | AAA | Lc -63.8 | 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
#F3F8E6
oklch(97.1% 0.024 119.5)
-
Step 100
100
#E4F0C9
oklch(93.6% 0.053 121.3)
-
Step 200
200
#CFE497
oklch(88.5% 0.102 120.9)
-
Step 300
300 (this color)
#A4C400
oklch(76.9% 0.184 120.8)
-
Step 400
400
#92AF00
oklch(70.7% 0.169 120.8)
-
Step 500
500
#7D9600
oklch(63.1% 0.151 120.8)
-
Step 600
600
#697E00
oklch(55.6% 0.133 120.6)
-
Step 700
700
#586A00
oklch(49.2% 0.117 120.6)
-
Step 800
800
#475700
oklch(42.8% 0.103 121.1)
-
Step 900
900
#3B4800
oklch(37.7% 0.09 120.7)
-
Step 950
950
#222B00
oklch(27.1% 0.065 121.1)
#A4C400 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) | #D1B800 | 0.069 |
| Deuteranopia (no green cones) | #CDB726 | 0.069 |
| Tritanopia (no blue cones) | #AEB9A6 | 0.156 |
| Achromatopsia (no color) | #B7B7B7 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4C400
#A4C400
oklch(76.9% 0.184 120.8)
- #C39EFF
#C39EFF
oklch(76.9% 0.14 300.7)
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 #A4C400, closest first.
No curated palette has a color within ΔE 0.04 of #A4C400.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pea #A4BF20 ΔE 0.017
- Slime Green #99CC04 ΔE 0.024
- Yellow Green #9ACD32 ΔE 0.025
- Bright Olive #9CBB04 ΔE 0.028
- Mustard Green #A8B504 ΔE 0.040
- Apple Green #76CD26 ΔE 0.052
- Dark Lime Green #7EBD01 ΔE 0.052
- Olive Yellow #C2B709 ΔE 0.052
Use #A4C400 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.