#310900
Closest named color: Dark Maroon (#3C0008). oklch(21.1% 0.068 38.6), rgb(49, 9, 0).
Aa
White text reads best on this color (17.95:1).
About this color
#310900 is a very dark, muted red. In OKLCH its lightness is 21%, its chroma 0.068 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.036 away. White text reads best on it, at 17.95:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | muted (0.068) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.16:1 |
| White text | 17.95:1 |
Values
| HEX | #310900 |
| RGB | rgb(49, 9, 0) |
| HSL | hsl(11, 100%, 10%) |
| OKLCH | oklch(21.1% 0.068 38.6) |
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 #310900 | 17.95:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #310900 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #310900 text on white | 17.95:1 | AAA | Lc 104.2 | Preferred for body text |
| #310900 text on black | 1.16:1 | 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
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F9E5DF
oklch(93.6% 0.023 37.4)
-
Step 200
200
#F5D0C4
oklch(88.6% 0.045 38.8)
-
Step 300
300
#EFAF9A
oklch(80.9% 0.081 38.9)
-
Step 400
400
#E48262
oklch(70.6% 0.129 38.8)
-
Step 500
500
#DA5E34
oklch(63.2% 0.166 38.6)
-
Step 600
600
#C53F00
oklch(55.6% 0.18 38.6)
-
Step 700
700
#A73400
oklch(49.2% 0.159 38.6)
-
Step 800
800
#8A2900
oklch(42.7% 0.139 38.4)
-
Step 900
900
#6F270E
oklch(37.7% 0.108 38.3)
-
Step 950
950 (this color)
#310900
oklch(21.1% 0.068 38.6)
#310900 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) | #151100 | 0.069 |
| Deuteranopia (no green cones) | #1F1A00 | 0.061 |
| Tritanopia (no blue cones) | #370007 | 0.030 |
| Achromatopsia (no color) | #171717 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310900
#310900
oklch(21.1% 0.068 38.6)
- #001D24
#001D24
oklch(21.3% 0.038 216.3)
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 #310900, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.036
- Deep Brown #410200 ΔE 0.039
- Dark Brown #341C02 ΔE 0.052
- Chocolate Brown #411900 ΔE 0.060
- Mahogany #4A0100 ΔE 0.060
- Very Dark Brown #1D0200 ΔE 0.062
- Dark Plum #3F012C ΔE 0.091
- Jet #212529 ΔE 0.092
Use #310900 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.