#031C10
Closest named color: Rich Navy (#001219). oklch(20.2% 0.04 160), rgb(3, 28, 16).
Aa
White text reads best on this color (17.83:1).
About this color
#031C10 is a very dark, muted green. In OKLCH its lightness is 20%, its chroma 0.040 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.051 away. White text reads best on it, at 17.83:1.
| Hue family | Greens |
| Lightness | very dark (20%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.17:1 |
| White text | 17.83:1 |
Values
| HEX | #031C10 |
| RGB | rgb(3, 28, 16) |
| HSL | hsl(151, 81%, 6%) |
| OKLCH | oklch(20.2% 0.04 160) |
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 #031C10 | 17.83:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #031C10 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #031C10 text on white | 17.83:1 | AAA | Lc 104.5 | Preferred for body text |
| #031C10 text on black | 1.17:1 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE7
oklch(93.6% 0.014 162.5)
-
Step 200
200
#CBDFD3
oklch(88.5% 0.027 159.5)
-
Step 300
300
#A7CBB6
oklch(81% 0.048 159.5)
-
Step 400
400
#75B090
oklch(70.7% 0.078 159.9)
-
Step 500
500
#4E9C75
oklch(63.2% 0.098 159.9)
-
Step 600
600
#2C865D
oklch(55.6% 0.107 159.8)
-
Step 700
700
#1D714D
oklch(49% 0.098 160.3)
-
Step 800
800
#1B5C3F
oklch(42.5% 0.082 160.2)
-
Step 900
900
#1E4C36
oklch(37.7% 0.064 160.2)
-
Step 950
950 (this color)
#031C10
oklch(20.2% 0.04 160)
#031C10 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) | #1C190F | 0.039 |
| Deuteranopia (no green cones) | #181711 | 0.036 |
| Tritanopia (no blue cones) | #001C19 | 0.017 |
| Achromatopsia (no color) | #181818 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031C10
#031C10
oklch(20.2% 0.04 160)
- #220F1C
#220F1C
oklch(20.2% 0.039 340)
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 #031C10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.051
- Rich Black #0D1B2A ΔE 0.057
- Almost Black #070D0D ΔE 0.060
- Dark Forest Green #002D04 ΔE 0.072
- Jet #212529 ΔE 0.073
- Dark #1B2431 ΔE 0.076
- Very Dark Green #062E03 ΔE 0.077
- Dark Brown #341C02 ΔE 0.087
Use #031C10 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.