#310717
Closest named color: Dark Maroon (#3C0008). oklch(21.4% 0.069 1.6), rgb(49, 7, 23).
Aa
White text reads best on this color (17.89:1).
About this color
#310717 is a very dark, muted red. In OKLCH its lightness is 21%, its chroma 0.069 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.035 away. White text reads best on it, at 17.89:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | muted (0.069) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.17:1 |
| White text | 17.89:1 |
Values
| HEX | #310717 |
| RGB | rgb(49, 7, 23) |
| HSL | hsl(337, 75%, 11%) |
| OKLCH | oklch(21.4% 0.069 1.6) |
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 #310717 | 17.89:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #310717 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #310717 text on white | 17.89:1 | AAA | Lc 104.2 | Preferred for body text |
| #310717 text on black | 1.17:1 | 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F9E4E9
oklch(93.7% 0.024 1.3)
-
Step 200
200
#F4CDD7
oklch(88.4% 0.046 0.9)
-
Step 300
300
#EEABBD
oklch(80.9% 0.082 1.4)
-
Step 400
400
#E37B9B
oklch(70.7% 0.133 1.4)
-
Step 500
500
#D75582
oklch(63.1% 0.168 1.6)
-
Step 600
600
#C2346C
oklch(55.5% 0.183 1.4)
-
Step 700
700
#A7255A
oklch(49.1% 0.17 1.5)
-
Step 800
800
#882149
oklch(42.7% 0.141 1.9)
-
Step 900
900
#6D223D
oklch(37.6% 0.109 1.7)
-
Step 950
950 (this color)
#310717
oklch(21.4% 0.069 1.6)
#310717 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) | #101217 | 0.078 |
| Deuteranopia (no green cones) | #1B1A16 | 0.070 |
| Tritanopia (no blue cones) | #36030E | 0.019 |
| Achromatopsia (no color) | #171717 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310717
#310717
oklch(21.4% 0.069 1.6)
- #001F1A
#001F1A
oklch(21.4% 0.039 180.2)
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 #310717, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.035
- Dark Plum #3F012C ΔE 0.053
- Deep Brown #410200 ΔE 0.053
- Eggplant #380835 ΔE 0.059
- Aubergine #3D0734 ΔE 0.061
- Very Dark Purple #2A0134 ΔE 0.067
- Mahogany #4A0100 ΔE 0.069
- Very Dark Brown #1D0200 ΔE 0.074
Use #310717 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.