#428203
Closest named color: Dark Grass Green (#388004). oklch(54.2% 0.157 135.1), rgb(66, 130, 3).
Aa
White text reads best on this color (4.74:1).
About this color
#428203 is a medium-dark, vivid green. In OKLCH its lightness is 54%, its chroma 0.157 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grass Green (#388004), ΔE 0.012 away. White text reads best on it, at 4.74:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Dark Grass Green (#388004) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #428203 |
| RGB | rgb(66, 130, 3) |
| HSL | hsl(90, 95%, 26%) |
| OKLCH | oklch(54.2% 0.157 135.1) |
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 #428203 | 4.74:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #428203 | 4.42:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #428203 text on white | 4.74:1 | AA | Lc 72.6 | Content text, not long reading |
| #428203 text on black | 4.42:1 | AA large text | Lc -29.1 | Dividers and decoration only |
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 600.
-
Step 50
50
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E4EDE0
oklch(93.6% 0.02 135.8)
-
Step 200
200
#CEDFC6
oklch(88.4% 0.038 135.5)
-
Step 300
300
#ADCB9E
oklch(80.8% 0.07 135.3)
-
Step 400
400
#81B067
oklch(70.6% 0.113 135.1)
-
Step 500
500
#619C3A
oklch(63.1% 0.145 134.9)
-
Step 600
600 (this color)
#428203
oklch(54.2% 0.157 135.1)
-
Step 700
700
#387100
oklch(49% 0.143 135.1)
-
Step 800
800
#2E5D06
oklch(42.8% 0.122 135.3)
-
Step 900
900
#2A4C12
oklch(37.7% 0.094 135)
-
Step 950
950
#192D0C
oklch(27.1% 0.061 134.9)
#428203 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) | #877600 | 0.096 |
| Deuteranopia (no green cones) | #7F7119 | 0.095 |
| Tritanopia (no blue cones) | #407D6E | 0.115 |
| Achromatopsia (no color) | #737373 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428203
#428203
oklch(54.2% 0.157 135.1)
- #914DAD
#914DAD
oklch(54.2% 0.158 315.1)
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 #428203, closest first.
No curated palette has a color within ΔE 0.04 of #428203.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grass Green #388004 ΔE 0.012
- Tree Green #2A7E19 ΔE 0.025
- Forest Green #228B22 ΔE 0.029
- Green #008000 ΔE 0.037
- Sap Green #5C8B15 ΔE 0.042
- Emerald Green #028F1E ΔE 0.042
- Olive Green #677A04 ΔE 0.048
- Jungle Green #048243 ΔE 0.050
Use #428203 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.