#1C5303
Closest named color: Forest (#0B5509). oklch(39% 0.12 138.8), rgb(28, 83, 3).
Aa
White text reads best on this color (9.17:1).
About this color
#1C5303 is a dark, moderately saturated green. In OKLCH its lightness is 39%, its chroma 0.120 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest (#0B5509), ΔE 0.010 away. White text reads best on it, at 9.17:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Forest (#0B5509) |
| Black text | 2.28:1 |
| White text | 9.17:1 |
Values
| HEX | #1C5303 |
| RGB | rgb(28, 83, 3) |
| HSL | hsl(101, 93%, 17%) |
| OKLCH | oklch(39% 0.12 138.8) |
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 #1C5303 | 9.17:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #1C5303 | 2.28:1 | Fails | Lc 13.2 | Not readable |
| #1C5303 text on white | 9.17:1 | AAA | Lc 90.8 | Preferred for body text |
| #1C5303 text on black | 2.28:1 | Fails | Lc -11.6 | Not readable |
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 900.
-
Step 50
50
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E1EEDE
oklch(93.5% 0.025 139.8)
-
Step 200
200
#C9E2C2
oklch(88.6% 0.051 138.9)
-
Step 300
300
#A3CF97
oklch(80.9% 0.09 139)
-
Step 400
400
#6FB65A
oklch(70.8% 0.145 138.9)
-
Step 500
500
#45A21F
oklch(63.1% 0.184 138.8)
-
Step 600
600
#318900
oklch(55.5% 0.174 138.8)
-
Step 700
700
#287400
oklch(49.2% 0.155 138.8)
-
Step 800
800
#1F5F00
oklch(42.7% 0.134 138.9)
-
Step 900
900 (this color)
#1C5303
oklch(39% 0.12 138.8)
-
Step 950
950
#102F05
oklch(27.1% 0.077 138.7)
#1C5303 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) | #564B00 | 0.079 |
| Deuteranopia (no green cones) | #4F460E | 0.078 |
| Tritanopia (no blue cones) | #165045 | 0.082 |
| Achromatopsia (no color) | #484848 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C5303
#1C5303
oklch(39% 0.12 138.8)
- #5F2B6D
#5F2B6D
oklch(39% 0.12 318.7)
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 #1C5303, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest #0B5509 ΔE 0.010
- Deep Green #02590F ΔE 0.020
- Navy Green #35530A ΔE 0.027
- Bottle Green #044A05 ΔE 0.036
- Darkgreen #054907 ΔE 0.039
- British Racing Green #05480D ΔE 0.043
- Racing Green #014600 ΔE 0.049
- Pine Green #0A481E ΔE 0.050
Use #1C5303 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.