#031D13
Closest named color: Rich Navy (#001219). oklch(20.7% 0.039 164.9), rgb(3, 29, 19).
Aa
White text reads best on this color (17.66:1).
About this color
#031D13 is a very dark, muted green. In OKLCH its lightness is 21%, its chroma 0.039 and its hue 165°. 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 17.66:1.
| Hue family | Greens |
| Lightness | very dark (21%) |
| Chroma | muted (0.039) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.18:1 |
| White text | 17.66:1 |
Values
| HEX | #031D13 |
| RGB | rgb(3, 29, 19) |
| HSL | hsl(157, 81%, 6%) |
| OKLCH | oklch(20.7% 0.039 164.9) |
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 #031D13 | 17.66:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #031D13 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #031D13 text on white | 17.66:1 | AAA | Lc 104.3 | Preferred for body text |
| #031D13 text on black | 1.18:1 | 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
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CADFD5
oklch(88.5% 0.026 165.6)
-
Step 300
300
#A6CAB9
oklch(80.8% 0.045 165)
-
Step 400
400
#74AF95
oklch(70.6% 0.073 165)
-
Step 500
500
#4B9B7B
oklch(63% 0.093 165.1)
-
Step 600
600
#288664
oklch(55.6% 0.102 164.8)
-
Step 700
700
#187153
oklch(49% 0.094 165.1)
-
Step 800
800
#185C44
oklch(42.6% 0.078 165.2)
-
Step 900
900
#1C4C39
oklch(37.7% 0.062 164.4)
-
Step 950
950 (this color)
#031D13
oklch(20.7% 0.039 164.9)
#031D13 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) | #1C1A12 | 0.038 |
| Deuteranopia (no green cones) | #181714 | 0.038 |
| Tritanopia (no blue cones) | #001D1A | 0.014 |
| Achromatopsia (no color) | #191919 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031D13
#031D13
oklch(20.7% 0.039 164.9)
- #24101C
#24101C
oklch(20.7% 0.039 344.2)
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 #031D13, 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 0.052
- Almost Black #070D0D ΔE 0.062
- Jet #212529 ΔE 0.068
- Dark #1B2431 ΔE 0.071
- Dark Forest Green #002D04 ΔE 0.071
- Very Dark Green #062E03 ΔE 0.075
- Dark Brown #341C02 ΔE 0.086
Use #031D13 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.