#31171F
Closest named color: Jet (#212529). oklch(24.5% 0.043 1.1), rgb(49, 23, 31).
Aa
White text reads best on this color (16.49:1).
About this color
#31171F is a very dark, muted red. In OKLCH its lightness is 24%, its chroma 0.043 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Jet (#212529), ΔE 0.051 away. White text reads best on it, at 16.49:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Jet (#212529) |
| Black text | 1.27:1 |
| White text | 16.49:1 |
Values
| HEX | #31171F |
| RGB | rgb(49, 23, 31) |
| HSL | hsl(342, 36%, 14%) |
| OKLCH | oklch(24.5% 0.043 1.1) |
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 #31171F | 16.49:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #31171F | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #31171F text on white | 16.49:1 | AAA | Lc 103.3 | Preferred for body text |
| #31171F text on black | 1.27:1 | 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
#FAF4F5
oklch(97.2% 0.007 5.6)
-
Step 100
100
#F3E6E9
oklch(93.6% 0.015 1.6)
-
Step 200
200
#EAD2D8
oklch(88.5% 0.028 0.7)
-
Step 300
300
#DEB3BE
oklch(80.8% 0.052 1.2)
-
Step 400
400
#CC8B9D
oklch(70.7% 0.082 1.3)
-
Step 500
500
#BD6D85
oklch(63% 0.105 1.3)
-
Step 600
600
#A8546F
oklch(55.5% 0.114 1.1)
-
Step 700
700
#90445D
oklch(49.1% 0.106 1)
-
Step 800
800
#75384C
oklch(42.6% 0.088 0.7)
-
Step 900
900
#5F313F
oklch(37.7% 0.069 1.5)
-
Step 950
950 (this color)
#31171F
oklch(24.5% 0.043 1.1)
#31171F 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) | #1B1C1F | 0.047 |
| Deuteranopia (no green cones) | #21211E | 0.045 |
| Tritanopia (no blue cones) | #35151A | 0.012 |
| Achromatopsia (no color) | #1F1F1F | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31171F
#31171F
oklch(24.5% 0.043 1.1)
- #012721
#012721
oklch(24.5% 0.044 179.7)
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 #31171F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.051
- Dark Brown #341C02 ΔE 0.053
- Dark Maroon #3C0008 ΔE 0.055
- Dark #1B2431 ΔE 0.058
- Chocolate Brown #411900 ΔE 0.059
- Deep Brown #410200 ΔE 0.061
- Eggplant #380835 ΔE 0.062
- Dark Plum #3F012C ΔE 0.063
Use #31171F 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.