#18B280
Closest named color: Bluey Green (#2BB179). oklch(67.8% 0.14 164), rgb(24, 178, 128).
Aa
Black text reads best on this color (7.71:1).
About this color
#18B280 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.140 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Green (#2BB179), ΔE 0.009 away. Black text reads best on it, at 7.71:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Bluey Green (#2BB179) |
| Black text | 7.71:1 |
| White text | 2.72:1 |
Values
| HEX | #18B280 |
| RGB | rgb(24, 178, 128) |
| HSL | hsl(161, 76%, 40%) |
| OKLCH | oklch(67.8% 0.14 164) |
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 #18B280 | 2.72:1 | Fails | Lc -57.3 | Large or bold text, headings |
| Black text on #18B280 | 7.71:1 | AAA | Lc 51.9 | Large or bold text, headings |
| #18B280 text on white | 2.72:1 | Fails | Lc 52.1 | Large or bold text, headings |
| #18B280 text on black | 7.71:1 | 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
#EFF8F3
oklch(97.1% 0.012 162.1)
-
Step 100
100
#DBF0E5
oklch(93.7% 0.027 163.2)
-
Step 200
200
#BDE4D1
oklch(88.6% 0.048 164.3)
-
Step 300
300
#8AD3B1
oklch(80.9% 0.088 163.5)
-
Step 400
400 (this color)
#18B280
oklch(67.8% 0.14 164)
-
Step 500
500
#00A273
oklch(63.1% 0.134 164)
-
Step 600
600
#008860
oklch(55.5% 0.118 164)
-
Step 700
700
#007350
oklch(49.2% 0.105 163.6)
-
Step 800
800
#005E41
oklch(42.7% 0.091 163.9)
-
Step 900
900
#004F36
oklch(37.9% 0.081 163.8)
-
Step 950
950
#002F1F
oklch(27% 0.057 164.4)
#18B280 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) | #AEA47D | 0.136 |
| Deuteranopia (no green cones) | #9D9883 | 0.132 |
| Tritanopia (no blue cones) | #00B2A4 | 0.052 |
| Achromatopsia (no color) | #9D9D9D | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18B280
#18B280
oklch(67.8% 0.14 164)
- #D272AD
#D272AD
oklch(67.8% 0.139 343.8)
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 #18B280, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Green #2BB179 ΔE 0.009
- Dark Seafoam #1FB57A ΔE 0.014
- Dark Seafoam Green #3EAF76 ΔE 0.017
- Green Teal #0CB577 ΔE 0.018
- Medium Sea Green #3CB371 ΔE 0.023
- Seaweed Green #35AD6B ΔE 0.026
- Jade Green #2BAF6A ΔE 0.027
- Jade #1FA774 ΔE 0.032
Use #18B280 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.