#1C8B59
Closest named color: Sea Green (#2E8B57). oklch(56.5% 0.123 157.9), rgb(28, 139, 89).
Aa
Black text reads best on this color (4.88:1).
About this color
#1C8B59 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.123 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.009 away. Black text reads best on it, at 4.88:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.88:1 |
| White text | 4.29:1 |
Values
| HEX | #1C8B59 |
| RGB | rgb(28, 139, 89) |
| HSL | hsl(153, 66%, 33%) |
| OKLCH | oklch(56.5% 0.123 157.9) |
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 #1C8B59 | 4.29:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #1C8B59 | 4.88:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #1C8B59 text on white | 4.29:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #1C8B59 text on black | 4.88:1 | AA | Lc -32.4 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#C9E0D1
oklch(88.5% 0.032 157.1)
-
Step 300
300
#A3CCB3
oklch(80.9% 0.056 158.1)
-
Step 400
400
#6FB28B
oklch(70.8% 0.09 157.6)
-
Step 500
500
#439E6F
oklch(63.1% 0.113 158.1)
-
Step 600
600 (this color)
#1C8B59
oklch(56.5% 0.123 157.9)
-
Step 700
700
#017447
oklch(49.2% 0.115 158)
-
Step 800
800
#0C5E3A
oklch(42.7% 0.095 157.9)
-
Step 900
900
#174D32
oklch(37.7% 0.073 157.9)
-
Step 950
950
#0F2D1D
oklch(26.9% 0.047 157.6)
#1C8B59 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) | #8A8056 | 0.113 |
| Deuteranopia (no green cones) | #7D765C | 0.111 |
| Tritanopia (no blue cones) | #008A7E | 0.056 |
| Achromatopsia (no color) | #7A7A7A | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C8B59
#1C8B59
oklch(56.5% 0.123 157.9)
- #A3578F
#A3578F
oklch(56.5% 0.123 337.9)
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 #1C8B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.009
- Viridian #1E9167 ΔE 0.023
- Jungle Green #048243 ΔE 0.037
- Light Forest Green #4F9153 ΔE 0.042
- Fern Green #548D44 ΔE 0.045
- Dark Sage #598556 ΔE 0.047
- Kelley Green #009337 ΔE 0.055
- Ocean Green #3D9973 ΔE 0.056
Use #1C8B59 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.