#310D02
Closest named color: Dark Maroon (#3C0008). oklch(21.8% 0.063 40), rgb(49, 13, 2).
Aa
White text reads best on this color (17.66:1).
About this color
#310D02 is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.063 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.038 away. White text reads best on it, at 17.66:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.18:1 |
| White text | 17.66:1 |
Values
| HEX | #310D02 |
| RGB | rgb(49, 13, 2) |
| HSL | hsl(14, 92%, 10%) |
| OKLCH | oklch(21.8% 0.063 40) |
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 #310D02 | 17.66:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #310D02 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #310D02 text on white | 17.66:1 | AAA | Lc 104.1 | Preferred for body text |
| #310D02 text on black | 1.18:1 | 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
#F7E5DF
oklch(93.5% 0.021 39.4)
-
Step 200
200
#F2D1C5
oklch(88.5% 0.041 41)
-
Step 300
300
#EBB19D
oklch(80.9% 0.074 39.9)
-
Step 400
400
#DF8666
oklch(70.8% 0.119 40.4)
-
Step 500
500
#D4643B
oklch(63.2% 0.152 40)
-
Step 600
600
#BF4713
oklch(55.6% 0.165 40)
-
Step 700
700
#A43701
oklch(49% 0.153 40)
-
Step 800
800
#862F09
oklch(42.8% 0.128 40)
-
Step 900
900
#6C2B13
oklch(37.8% 0.099 39.6)
-
Step 950
950 (this color)
#310D02
oklch(21.8% 0.063 40)
#310D02 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) | #171301 | 0.063 |
| Deuteranopia (no green cones) | #201C01 | 0.058 |
| Tritanopia (no blue cones) | #37050A | 0.028 |
| Achromatopsia (no color) | #191919 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310D02
#310D02
oklch(21.8% 0.063 40)
- #001E27
#001E27
oklch(21.8% 0.04 221.1)
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 #310D02, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.038
- Deep Brown #410200 ΔE 0.040
- Dark Brown #341C02 ΔE 0.044
- Chocolate Brown #411900 ΔE 0.054
- Mahogany #4A0100 ΔE 0.060
- Very Dark Brown #1D0200 ΔE 0.068
- Jet #212529 ΔE 0.084
- Dark Plum #3F012C ΔE 0.090
Use #310D02 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.