#031603
Closest named color: Almost Black (#070D0D). oklch(17.7% 0.049 143.2), rgb(3, 22, 3).
Aa
White text reads best on this color (18.75:1).
About this color
#031603 is a very dark, muted green. In OKLCH its lightness is 18%, its chroma 0.049 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.050 away. White text reads best on it, at 18.75:1.
| Hue family | Greens |
| Lightness | very dark (18%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.11:1 |
| White text | 18.75:1 |
Values
| HEX | #031603 |
| RGB | rgb(3, 22, 3) |
| HSL | hsl(120, 76%, 5%) |
| OKLCH | oklch(17.7% 0.049 143.2) |
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 #031603 | 18.75:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #031603 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #031603 text on white | 18.75:1 | AAA | Lc 105.1 | Preferred for body text |
| #031603 text on black | 1.11:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE3
oklch(93.7% 0.016 142.6)
-
Step 200
200
#CDDFCC
oklch(88.5% 0.032 143.8)
-
Step 300
300
#ABCBA9
oklch(80.9% 0.058 143.5)
-
Step 400
400
#7EB07B
oklch(70.8% 0.093 143.2)
-
Step 500
500
#5C9B59
oklch(63% 0.116 143.1)
-
Step 600
600
#3F863E
oklch(55.7% 0.128 143.4)
-
Step 700
700
#317130
oklch(49.1% 0.118 143.3)
-
Step 800
800
#2A5C28
oklch(42.6% 0.098 142.9)
-
Step 900
900
#274C25
oklch(37.8% 0.077 142.8)
-
Step 950
950 (this color)
#031603
oklch(17.7% 0.049 143.2)
#031603 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) | #171302 | 0.036 |
| Deuteranopia (no green cones) | #141104 | 0.035 |
| Tritanopia (no blue cones) | #011512 | 0.032 |
| Achromatopsia (no color) | #121212 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031603
#031603
oklch(17.7% 0.049 143.2)
- #1B081D
#1B081D
oklch(17.7% 0.05 323.7)
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 #031603, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.050
- Rich Navy #001219 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.080
- Very Dark Brown #1D0200 ΔE 0.087
- Dark Forest Green #002D04 ΔE 0.088
- Very Dark Green #062E03 ΔE 0.093
- Jet #212529 ΔE 0.100
- Dark Brown #341C02 ΔE 0.101
Use #031603 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.