#031003
Closest named color: Almost Black (#070D0D). oklch(15.5% 0.038 143.5), rgb(3, 16, 3).
Aa
White text reads best on this color (19.45:1).
About this color
#031003 is a very dark, muted green. In OKLCH its lightness is 15%, its chroma 0.038 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 0.033 away. White text reads best on it, at 19.45:1.
| Hue family | Greens |
| Lightness | very dark (15%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.07:1 |
| White text | 19.45:1 |
Values
| HEX | #031003 |
| RGB | rgb(3, 16, 3) |
| HSL | hsl(120, 68%, 4%) |
| OKLCH | oklch(15.5% 0.038 143.5) |
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 #031003 | 19.45:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #031003 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #031003 text on white | 19.45:1 | AAA | Lc 105.6 | Preferred for body text |
| #031003 text on black | 1.07:1 | 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
#F3F6F3
oklch(97% 0.005 145.5)
-
Step 100
100
#E5ECE4
oklch(93.6% 0.013 141.8)
-
Step 200
200
#D0DECF
oklch(88.6% 0.025 143.5)
-
Step 300
300
#B0C9AF
oklch(81% 0.045 144.1)
-
Step 400
400
#86AD84
oklch(70.8% 0.072 143.5)
-
Step 500
500
#679865
oklch(63.1% 0.092 143.5)
-
Step 600
600
#4E824C
oklch(55.6% 0.099 143.3)
-
Step 700
700
#3E6E3D
oklch(49.1% 0.092 143.6)
-
Step 800
800
#345A33
oklch(42.8% 0.076 143.6)
-
Step 900
900
#2E4A2D
oklch(37.8% 0.059 143.5)
-
Step 950
950 (this color)
#031003
oklch(15.5% 0.038 143.5)
#031003 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) | #110E02 | 0.028 |
| Deuteranopia (no green cones) | #0F0C04 | 0.030 |
| Tritanopia (no blue cones) | #020F0D | 0.025 |
| Achromatopsia (no color) | #0D0D0D | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031003
#031003
oklch(15.5% 0.038 143.5)
- #140615
#140615
oklch(15.4% 0.039 324.9)
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 #031003, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.033
- Rich Navy #001219 ΔE 0.047
- Very Dark Brown #1D0200 ΔE 0.075
- Rich Black #0D1B2A ΔE 0.087
- Dark Forest Green #002D04 ΔE 0.113
- Dark Navy Blue #00022E ΔE 0.114
- Jet #212529 ΔE 0.115
- Midnight #03012D ΔE 0.115
Use #031003 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.