#1DB581
Closest named color: Dark Seafoam (#1FB57A). oklch(68.7% 0.142 163.2), rgb(29, 181, 129).
Aa
Black text reads best on this color (7.97:1).
About this color
#1DB581 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.142 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam (#1FB57A), ΔE 0.010 away. Black text reads best on it, at 7.97:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Dark Seafoam (#1FB57A) |
| Black text | 7.97:1 |
| White text | 2.63:1 |
Values
| HEX | #1DB581 |
| RGB | rgb(29, 181, 129) |
| HSL | hsl(159, 72%, 41%) |
| OKLCH | oklch(68.7% 0.142 163.2) |
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 #1DB581 | 2.63:1 | Fails | Lc -55.9 | Large or bold text, headings |
| Black text on #1DB581 | 7.97:1 | AAA | Lc 53.2 | Large or bold text, headings |
| #1DB581 text on white | 2.63:1 | Fails | Lc 50.8 | Large or bold text, headings |
| #1DB581 text on black | 7.97:1 | AAA | Lc -51.1 | 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
#EFF8F3
oklch(97.1% 0.012 162.1)
-
Step 100
100
#DBF0E5
oklch(93.7% 0.027 163.2)
-
Step 200
200
#BDE4D0
oklch(88.5% 0.049 163)
-
Step 300
300
#8AD3B0
oklch(80.9% 0.089 162.8)
-
Step 400
400 (this color)
#1DB581
oklch(68.7% 0.142 163.2)
-
Step 500
500
#00A272
oklch(63% 0.135 163.5)
-
Step 600
600
#00895F
oklch(55.7% 0.12 163.1)
-
Step 700
700
#00734F
oklch(49.1% 0.106 163)
-
Step 800
800
#005E40
oklch(42.6% 0.092 163.1)
-
Step 900
900
#004F35
oklch(37.8% 0.082 162.9)
-
Step 950
950
#002F1E
oklch(27% 0.058 163)
#1DB581 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) | #B2A77E | 0.138 |
| Deuteranopia (no green cones) | #A09A84 | 0.134 |
| Tritanopia (no blue cones) | #00B5A7 | 0.054 |
| Achromatopsia (no color) | #9F9F9F | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1DB581
#1DB581
oklch(68.7% 0.142 163.2)
- #D674B1
#D674B1
oklch(68.8% 0.142 343.4)
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 #1DB581, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam #1FB57A ΔE 0.010
- Bluey Green #2BB179 ΔE 0.013
- Green Teal #0CB577 ΔE 0.015
- Dark Seafoam Green #3EAF76 ΔE 0.020
- Medium Sea Green #3CB371 ΔE 0.021
- Jade Green #2BAF6A ΔE 0.030
- Seaweed Green #35AD6B ΔE 0.030
- Green Blue #01C08D ΔE 0.031
Use #1DB581 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.