#05A421
Closest named color: Kelly Green (#02AB2E). oklch(62.4% 0.202 143.9), rgb(5, 164, 33).
Aa
Black text reads best on this color (6.33:1).
About this color
#05A421 is a medium-light, vivid green. In OKLCH its lightness is 62%, its chroma 0.202 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.020 away. Black text reads best on it, at 6.33:1.
| Hue family | Greens |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.202) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.33:1 |
| White text | 3.31:1 |
Values
| HEX | #05A421 |
| RGB | rgb(5, 164, 33) |
| HSL | hsl(131, 94%, 33%) |
| OKLCH | oklch(62.4% 0.202 143.9) |
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 #05A421 | 3.31:1 | AA large text | Lc -65.2 | Content text, not long reading |
| Black text on #05A421 | 6.33:1 | AA | Lc 44.3 | Non-text elements, placeholder text |
| #05A421 text on white | 3.31:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #05A421 text on black | 6.33:1 | AA | Lc -42.0 | Non-text elements, placeholder 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 500.
-
Step 50
50
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DFEFDE
oklch(93.6% 0.028 143.7)
-
Step 200
200
#C4E3C3
oklch(88.5% 0.054 144.3)
-
Step 300
300
#9AD298
oklch(81% 0.099 143.8)
-
Step 400
400
#5BB95C
oklch(70.6% 0.158 143.9)
-
Step 500
500 (this color)
#05A421
oklch(62.4% 0.202 143.9)
-
Step 600
600
#008C19
oklch(55.6% 0.181 143.9)
-
Step 700
700
#007614
oklch(49.1% 0.16 143.9)
-
Step 800
800
#00610E
oklch(42.8% 0.139 143.9)
-
Step 900
900
#00510A
oklch(37.7% 0.123 143.9)
-
Step 950
950
#033006
oklch(27% 0.083 143.9)
#05A421 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) | #A79300 | 0.146 |
| Deuteranopia (no green cones) | #998931 | 0.147 |
| Tritanopia (no blue cones) | #009F8C | 0.129 |
| Achromatopsia (no color) | #8D8D8D | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05A421
#05A421
oklch(62.4% 0.202 143.9)
- #BF52CB
#BF52CB
oklch(62.4% 0.202 323.6)
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 #05A421, closest first.
No curated palette has a color within ΔE 0.04 of #05A421.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.020
- Grassy Green #419C03 ΔE 0.028
- Grass Green #3F9B0B ΔE 0.029
- Medium Green #39AD48 ΔE 0.046
- Irish Green #019529 ΔE 0.047
- True Green #089404 ΔE 0.047
- Leaf Green #5CA904 ΔE 0.049
- Shamrock #01B44C ΔE 0.052
Use #05A421 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.