#1B8A5D
Closest named color: Sea Green (#2E8B57). oklch(56.3% 0.118 160.3), rgb(27, 138, 93).
Aa
Black text reads best on this color (4.84:1).
About this color
#1B8A5D is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.118 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.013 away. Black text reads best on it, at 4.84:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.84:1 |
| White text | 4.33:1 |
Values
| HEX | #1B8A5D |
| RGB | rgb(27, 138, 93) |
| HSL | hsl(156, 67%, 32%) |
| OKLCH | oklch(56.3% 0.118 160.3) |
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 #1B8A5D | 4.33:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #1B8A5D | 4.84:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #1B8A5D text on white | 4.33:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #1B8A5D text on black | 4.84:1 | AA | Lc -32.1 | 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 600.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#C9E0D3
oklch(88.6% 0.03 161)
-
Step 300
300
#A3CCB5
oklch(80.9% 0.054 160.3)
-
Step 400
400
#6FB18F
oklch(70.6% 0.085 160.7)
-
Step 500
500
#439E73
oklch(63.2% 0.109 160.3)
-
Step 600
600 (this color)
#1B8A5D
oklch(56.3% 0.118 160.3)
-
Step 700
700
#01734B
oklch(49.1% 0.11 160.5)
-
Step 800
800
#0C5E3E
oklch(42.8% 0.091 160.6)
-
Step 900
900
#174D34
oklch(37.7% 0.071 159.7)
-
Step 950
950
#0F2D1F
oklch(26.9% 0.045 160.9)
#1B8A5D 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) | #887F5A | 0.111 |
| Deuteranopia (no green cones) | #7B7560 | 0.110 |
| Tritanopia (no blue cones) | #00897E | 0.050 |
| Achromatopsia (no color) | #797979 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B8A5D
#1B8A5D
oklch(56.3% 0.118 160.3)
- #A2578B
#A2578B
oklch(56.2% 0.119 339.9)
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 #1B8A5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.013
- Viridian #1E9167 ΔE 0.023
- Jungle Green #048243 ΔE 0.040
- Dark Sage #598556 ΔE 0.046
- Light Forest Green #4F9153 ΔE 0.046
- Fern Green #548D44 ΔE 0.050
- Ocean Green #3D9973 ΔE 0.056
- Kelley Green #009337 ΔE 0.062
Use #1B8A5D 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.