#313E2E
Closest named color: Onyx (#343A40). oklch(34.7% 0.032 139.8), rgb(49, 62, 46).
Aa
White text reads best on this color (11.29:1).
About this color
#313E2E is a dark, muted green. In OKLCH its lightness is 35%, its chroma 0.032 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.039 away. White text reads best on it, at 11.29:1.
| Hue family | Greens |
| Lightness | dark (35%) |
| Chroma | muted (0.032) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.85:1 |
| White text | 11.29:1 |
Values
| HEX | #313E2E |
| RGB | rgb(49, 62, 46) |
| HSL | hsl(109, 15%, 21%) |
| OKLCH | oklch(34.7% 0.032 139.8) |
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 #313E2E | 11.29:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #313E2E | 1.85:1 | Fails | Lc 7.8 | Not readable |
| #313E2E text on white | 11.29:1 | AAA | Lc 96.1 | Preferred for body text |
| #313E2E text on black | 1.85:1 | 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 900.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D5DBD3
oklch(88.5% 0.013 137.8)
-
Step 300
300
#B9C5B6
oklch(81% 0.025 139.4)
-
Step 400
400
#94A790
oklch(70.7% 0.039 140.2)
-
Step 500
500
#7A9175
oklch(63.1% 0.049 140.1)
-
Step 600
600
#637B5D
oklch(55.5% 0.053 139.4)
-
Step 700
700
#52684D
oklch(49.1% 0.05 139.9)
-
Step 800
800
#43553F
oklch(42.8% 0.042 140)
-
Step 900
900 (this color)
#313E2E
oklch(34.7% 0.032 139.8)
-
Step 950
950
#21291F
oklch(27% 0.021 139.4)
#313E2E 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) | #3F3B2D | 0.024 |
| Deuteranopia (no green cones) | #3D3A2F | 0.023 |
| Tritanopia (no blue cones) | #303D3A | 0.022 |
| Achromatopsia (no color) | #3A3A3A | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #313E2E
#313E2E
oklch(34.7% 0.032 139.8)
- #413444
#413444
oklch(34.6% 0.032 319.9)
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 #313E2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.039
- Pakistan Green #283618 ΔE 0.041
- Dark Olive #373E02 ΔE 0.050
- Evergreen #05472A ΔE 0.050
- Charcoal #264653 ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.061
- Pine Green #0A481E ΔE 0.061
Use #313E2E 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.