#031C09
Closest named color: Rich Navy (#001219). oklch(20% 0.049 149.5), rgb(3, 28, 9).
Aa
White text reads best on this color (17.88:1).
About this color
#031C09 is a very dark, muted green. In OKLCH its lightness is 20%, its chroma 0.049 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.059 away. White text reads best on it, at 17.88:1.
| Hue family | Greens |
| Lightness | very dark (20%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.17:1 |
| White text | 17.88:1 |
Values
| HEX | #031C09 |
| RGB | rgb(3, 28, 9) |
| HSL | hsl(134, 81%, 6%) |
| OKLCH | oklch(20% 0.049 149.5) |
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 #031C09 | 17.88:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #031C09 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #031C09 text on white | 17.88:1 | AAA | Lc 104.5 | Preferred for body text |
| #031C09 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CBE0CE
oklch(88.6% 0.033 149.5)
-
Step 300
300
#A7CCAD
oklch(81% 0.058 149.6)
-
Step 400
400
#76B181
oklch(70.7% 0.093 149.4)
-
Step 500
500
#4F9D61
oklch(63% 0.119 149.4)
-
Step 600
600
#2E8847
oklch(55.7% 0.13 149.3)
-
Step 700
700
#1F7339
oklch(49.2% 0.12 149.6)
-
Step 800
800
#1D5E2F
oklch(42.8% 0.1 149.2)
-
Step 900
900
#1F4D2A
oklch(37.8% 0.078 149.2)
-
Step 950
950 (this color)
#031C09
oklch(20% 0.049 149.5)
#031C09 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) | #1C1908 | 0.039 |
| Deuteranopia (no green cones) | #19160A | 0.040 |
| Tritanopia (no blue cones) | #001B18 | 0.029 |
| Achromatopsia (no color) | #171717 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031C09
#031C09
oklch(20% 0.049 149.5)
- #220D21
#220D21
oklch(20.1% 0.049 329)
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 #031C09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.059
- Almost Black #070D0D ΔE 0.064
- Dark Forest Green #002D04 ΔE 0.067
- Rich Black #0D1B2A ΔE 0.069
- Very Dark Green #062E03 ΔE 0.072
- Jet #212529 ΔE 0.080
- Dark #1B2431 ΔE 0.086
- Dark Brown #341C02 ΔE 0.088
Use #031C09 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.