#031A03
Closest named color: Rich Navy (#001219). oklch(19.2% 0.055 143), rgb(3, 26, 3).
Aa
White text reads best on this color (18.21:1).
About this color
#031A03 is a very dark, muted green. In OKLCH its lightness is 19%, its chroma 0.055 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.063 away. White text reads best on it, at 18.21:1.
| Hue family | Greens |
| Lightness | very dark (19%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.15:1 |
| White text | 18.21:1 |
Values
| HEX | #031A03 |
| RGB | rgb(3, 26, 3) |
| HSL | hsl(120, 79%, 6%) |
| OKLCH | oklch(19.2% 0.055 143) |
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 #031A03 | 18.21:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #031A03 | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #031A03 text on white | 18.21:1 | AAA | Lc 104.7 | Preferred for body text |
| #031A03 text on black | 1.15:1 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE2
oklch(93.6% 0.018 142.8)
-
Step 200
200
#CCE0CA
oklch(88.6% 0.037 142.7)
-
Step 300
300
#A8CCA6
oklch(80.9% 0.065 143.6)
-
Step 400
400
#79B175
oklch(70.6% 0.104 142.8)
-
Step 500
500
#539E51
oklch(63.2% 0.134 143.3)
-
Step 600
600
#358833
oklch(55.7% 0.146 142.9)
-
Step 700
700
#267326
oklch(49.1% 0.135 143.2)
-
Step 800
800
#225E21
oklch(42.8% 0.112 143.1)
-
Step 900
900
#224D20
oklch(37.7% 0.087 142.8)
-
Step 950
950 (this color)
#031A03
oklch(19.2% 0.055 143)
#031A03 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) | #1B1702 | 0.040 |
| Deuteranopia (no green cones) | #181504 | 0.039 |
| Tritanopia (no blue cones) | #011915 | 0.035 |
| Achromatopsia (no color) | #151515 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031A03
#031A03
oklch(19.2% 0.055 143)
- #1F0A22
#1F0A22
oklch(19.1% 0.055 322.5)
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 #031A03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.063
- Almost Black #070D0D ΔE 0.063
- Dark Forest Green #002D04 ΔE 0.072
- Very Dark Green #062E03 ΔE 0.077
- Rich Black #0D1B2A ΔE 0.079
- Jet #212529 ΔE 0.091
- Dark Brown #341C02 ΔE 0.093
- Dark #1B2431 ΔE 0.097
Use #031A03 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.