#1DB451
Closest named color: Shamrock (#01B44C). oklch(67.5% 0.183 148.8), rgb(29, 180, 81).
Aa
Black text reads best on this color (7.69:1).
About this color
#1DB451 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.183 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.008 away. Black text reads best on it, at 7.69:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.183) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.69:1 |
| White text | 2.72:1 |
Values
| HEX | #1DB451 |
| RGB | rgb(29, 180, 81) |
| HSL | hsl(141, 72%, 41%) |
| OKLCH | oklch(67.5% 0.183 148.8) |
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 #1DB451 | 2.72:1 | Fails | Lc -57.4 | Large or bold text, headings |
| Black text on #1DB451 | 7.69:1 | AAA | Lc 51.8 | Large or bold text, headings |
| #1DB451 text on white | 2.72:1 | Fails | Lc 52.2 | Large or bold text, headings |
| #1DB451 text on black | 7.69:1 | AAA | Lc -49.7 | 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 400.
-
Step 50
50
#EFF9F0
oklch(97.2% 0.016 148.4)
-
Step 100
100
#DBF0DE
oklch(93.5% 0.033 149.5)
-
Step 200
200
#BDE5C2
oklch(88.4% 0.063 148.5)
-
Step 300
300
#8BD597
oklch(80.8% 0.114 148.5)
-
Step 400
400 (this color)
#1DB451
oklch(67.5% 0.183 148.8)
-
Step 500
500
#00A546
oklch(63% 0.178 148.9)
-
Step 600
600
#008B39
oklch(55.6% 0.158 148.7)
-
Step 700
700
#00752F
oklch(49.1% 0.139 148.8)
-
Step 800
800
#006025
oklch(42.7% 0.121 148.7)
-
Step 900
900
#00501E
oklch(37.6% 0.107 148.8)
-
Step 950
950
#00300F
oklch(27% 0.076 148.8)
#1DB451 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) | #B6A348 | 0.148 |
| Deuteranopia (no green cones) | #A59859 | 0.146 |
| Tritanopia (no blue cones) | #00B09E | 0.106 |
| Achromatopsia (no color) | #9D9D9D | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1DB451
#1DB451
oklch(67.5% 0.183 148.8)
- #D267CE
#D267CE
oklch(67.6% 0.184 328.8)
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 #1DB451, closest first.
No curated palette has a color within ΔE 0.04 of #1DB451.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.008
- Medium Green #39AD48 ΔE 0.020
- Cool Green #33B864 ΔE 0.026
- Leafy Green #51B73B ΔE 0.033
- Dark Pastel Green #56AE57 ΔE 0.037
- Jade Green #2BAF6A ΔE 0.038
- Kelly Green #02AB2E ΔE 0.038
- Shamrock Green #02C14D ΔE 0.039
Use #1DB451 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.