#031503
Closest named color: Almost Black (#070D0D). oklch(17.3% 0.047 143.2), rgb(3, 21, 3).
Aa
White text reads best on this color (18.87:1).
About this color
#031503 is a very dark, muted green. In OKLCH its lightness is 17%, its chroma 0.047 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 0.046 away. White text reads best on it, at 18.87:1.
| Hue family | Greens |
| Lightness | very dark (17%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.11:1 |
| White text | 18.87:1 |
Values
| HEX | #031503 |
| RGB | rgb(3, 21, 3) |
| HSL | hsl(120, 75%, 5%) |
| OKLCH | oklch(17.3% 0.047 143.2) |
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 #031503 | 18.87:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #031503 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #031503 text on white | 18.87:1 | AAA | Lc 105.2 | Preferred for body text |
| #031503 text on black | 1.11:1 | 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
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE3
oklch(93.7% 0.016 142.6)
-
Step 200
200
#CEDFCC
oklch(88.6% 0.031 142.3)
-
Step 300
300
#ACCAAA
oklch(80.8% 0.055 143.4)
-
Step 400
400
#7FAF7D
oklch(70.6% 0.088 143.6)
-
Step 500
500
#5D9B5B
oklch(63.1% 0.114 143.4)
-
Step 600
600
#428540
oklch(55.5% 0.123 143.2)
-
Step 700
700
#337132
oklch(49.2% 0.115 143.3)
-
Step 800
800
#2B5C2A
oklch(42.7% 0.095 143.3)
-
Step 900
900
#284B26
oklch(37.6% 0.073 142.8)
-
Step 950
950 (this color)
#031503
oklch(17.3% 0.047 143.2)
#031503 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) | #161202 | 0.035 |
| Deuteranopia (no green cones) | #131004 | 0.035 |
| Tritanopia (no blue cones) | #011411 | 0.031 |
| Achromatopsia (no color) | #111111 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031503
#031503
oklch(17.3% 0.047 143.2)
- #1A081C
#1A081C
oklch(17.4% 0.048 323.5)
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 #031503, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.046
- Rich Navy #001219 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.080
- Very Dark Brown #1D0200 ΔE 0.085
- Dark Forest Green #002D04 ΔE 0.092
- Very Dark Green #062E03 ΔE 0.097
- Jet #212529 ΔE 0.102
- Dark Brown #341C02 ΔE 0.103
Use #031503 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.