#671900
Closest named color: Reddy Brown (#6E1005). oklch(34.2% 0.115 36.7), rgb(103, 25, 0).
Aa
White text reads best on this color (12.23:1).
About this color
#671900 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.115 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.019 away. White text reads best on it, at 12.23:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.115) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.71:1 |
| White text | 12.23:1 |
Values
| HEX | #671900 |
| RGB | rgb(103, 25, 0) |
| HSL | hsl(15, 100%, 20%) |
| OKLCH | oklch(34.2% 0.115 36.7) |
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 #671900 | 12.23:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #671900 | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #671900 text on white | 12.23:1 | AAA | Lc 96.8 | Preferred for body text |
| #671900 text on black | 1.71:1 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE5DE
oklch(93.7% 0.025 39.4)
-
Step 200
200
#F7CFC3
oklch(88.5% 0.048 37.3)
-
Step 300
300
#F2AD99
oklch(80.8% 0.086 36.8)
-
Step 400
400
#E97F60
oklch(70.8% 0.138 37.1)
-
Step 500
500
#DF5831
oklch(63.1% 0.177 36.5)
-
Step 600
600
#C93A00
oklch(55.7% 0.187 36.8)
-
Step 700
700
#AA2F00
oklch(49.1% 0.166 36.6)
-
Step 800
800
#8C2500
oklch(42.6% 0.144 36.6)
-
Step 900
900 (this color)
#671900
oklch(34.2% 0.115 36.7)
-
Step 950
950
#431609
oklch(26.9% 0.073 36.7)
#671900 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) | #312A00 | 0.118 |
| Deuteranopia (no green cones) | #443C00 | 0.107 |
| Tritanopia (no blue cones) | #720015 | 0.042 |
| Achromatopsia (no color) | #353535 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #671900
#671900
oklch(34.2% 0.115 36.7)
- #00404D
#00404D
oklch(34.2% 0.061 216.8)
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 #671900, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.019
- Blood #770001 ΔE 0.039
- Claret #680018 ΔE 0.044
- Chestnut #742802 ΔE 0.045
- Maroon #800000 ΔE 0.055
- Wine Red #7B0323 ΔE 0.062
- Burgundy #610023 ΔE 0.064
- Bordeaux #7B002C ΔE 0.073
Use #671900 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.