#313B0F
Closest named color: Dark Olive (#373E02). oklch(33.3% 0.066 121.1), rgb(49, 59, 15).
Aa
White text reads best on this color (11.91:1).
About this color
#313B0F is a dark, muted brown. In OKLCH its lightness is 33%, its chroma 0.066 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.018 away. White text reads best on it, at 11.91:1.
| Hue family | Browns |
| Lightness | dark (33%) |
| Chroma | muted (0.066) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.76:1 |
| White text | 11.91:1 |
Values
| HEX | #313B0F |
| RGB | rgb(49, 59, 15) |
| HSL | hsl(74, 59%, 15%) |
| OKLCH | oklch(33.3% 0.066 121.1) |
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 #313B0F | 11.91:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #313B0F | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #313B0F text on white | 11.91:1 | AAA | Lc 97.2 | Preferred for body text |
| #313B0F text on black | 1.76:1 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E8EBE1
oklch(93.5% 0.014 120.3)
-
Step 200
200
#D6DCC8
oklch(88.4% 0.028 120.6)
-
Step 300
300
#BBC6A3
oklch(80.9% 0.049 121.7)
-
Step 400
400
#99A970
oklch(70.8% 0.08 121.2)
-
Step 500
500
#809349
oklch(63.1% 0.102 121.3)
-
Step 600
600
#6A7D29
oklch(55.7% 0.111 121)
-
Step 700
700
#58691C
oklch(49.1% 0.103 121.1)
-
Step 800
800
#48561A
oklch(42.8% 0.085 121.3)
-
Step 900
900 (this color)
#313B0F
oklch(33.3% 0.066 121.1)
-
Step 950
950
#232A11
oklch(27.1% 0.043 122.2)
#313B0F 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) | #3F3709 | 0.025 |
| Deuteranopia (no green cones) | #3E3712 | 0.026 |
| Tritanopia (no blue cones) | #343832 | 0.055 |
| Achromatopsia (no color) | #373737 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #313B0F
#313B0F
oklch(33.3% 0.066 121.1)
- #3C2D53
#3C2D53
oklch(33.2% 0.067 301)
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 #313B0F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.018
- Pakistan Green #283618 ΔE 0.026
- Hunter Green #0B4008 ΔE 0.046
- Forrest Green #154406 ΔE 0.046
- Pine Green #0A481E ΔE 0.050
- Evergreen #05472A ΔE 0.051
- British Racing Green #05480D ΔE 0.057
- Racing Green #014600 ΔE 0.060
Use #313B0F 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.