#15B31D
Closest named color: Kelly Green (#02AB2E). oklch(66.7% 0.217 143), rgb(21, 179, 29).
Aa
Black text reads best on this color (7.49:1).
About this color
#15B31D is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.217 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.028 away. Black text reads best on it, at 7.49:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.217) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 7.49:1 |
| White text | 2.80:1 |
Values
| HEX | #15B31D |
| RGB | rgb(21, 179, 29) |
| HSL | hsl(123, 79%, 39%) |
| OKLCH | oklch(66.7% 0.217 143) |
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 #15B31D | 2.80:1 | Fails | Lc -58.4 | Large or bold text, headings |
| Black text on #15B31D | 7.49:1 | AAA | Lc 50.9 | Large or bold text, headings |
| #15B31D text on white | 2.80:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #15B31D text on black | 7.49:1 | AAA | Lc -48.7 | Large or bold text, headings |
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
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DEF0DD
oklch(93.7% 0.032 143.9)
-
Step 200
200
#C3E4C0
oklch(88.5% 0.06 142.8)
-
Step 300
300
#98D394
oklch(81% 0.106 143)
-
Step 400
400
#57BA53
oklch(70.6% 0.169 142.8)
-
Step 500
500 (this color)
#15B31D
oklch(66.7% 0.217 143)
-
Step 600
600
#008C0C
oklch(55.5% 0.186 143)
-
Step 700
700
#007608
oklch(49.1% 0.164 143)
-
Step 800
800
#006105
oklch(42.7% 0.143 143)
-
Step 900
900
#005104
oklch(37.7% 0.126 143)
-
Step 950
950
#003002
oklch(26.8% 0.089 143.2)
#15B31D 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) | #B7A100 | 0.155 |
| Deuteranopia (no green cones) | #A79631 | 0.154 |
| Tritanopia (no blue cones) | #00AE98 | 0.139 |
| Achromatopsia (no color) | #9A9A9A | 0.218 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15B31D
#15B31D
oklch(66.7% 0.217 143)
- #D05ADF
#D05ADF
oklch(66.6% 0.217 323)
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 #15B31D, closest first.
No curated palette has a color within ΔE 0.04 of #15B31D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.028
- Shamrock #01B44C ΔE 0.033
- Leafy Green #51B73B ΔE 0.041
- Leaf Green #5CA904 ΔE 0.042
- Medium Green #39AD48 ΔE 0.044
- Grass #5CAC2D ΔE 0.045
- Shamrock Green #02C14D ΔE 0.046
- Frog Green #58BC08 ΔE 0.047
Use #15B31D 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.