#551F0B
Closest named color: Chocolate Brown (#411900). oklch(31.8% 0.086 39.5), rgb(85, 31, 11).
Aa
White text reads best on this color (13.23:1).
About this color
#551F0B is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.086 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.052 away. White text reads best on it, at 13.23:1.
| Hue family | Reds |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.58:1 |
| White text | 13.23:1 |
Values
| HEX | #551F0B |
| RGB | rgb(85, 31, 11) |
| HSL | hsl(16, 77%, 19%) |
| OKLCH | oklch(31.8% 0.086 39.5) |
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 #551F0B | 13.23:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #551F0B | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #551F0B text on white | 13.23:1 | AAA | Lc 99.0 | Preferred for body text |
| #551F0B text on black | 1.58:1 | 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
#FEF3EF
oklch(97.2% 0.013 41.2)
-
Step 100
100
#FCE4DC
oklch(93.6% 0.029 39.3)
-
Step 200
200
#FBCDBE
oklch(88.4% 0.056 38.8)
-
Step 300
300
#FAAA8F
oklch(80.9% 0.102 39.4)
-
Step 400
400
#F3774C
oklch(70.6% 0.163 39.4)
-
Step 500
500
#E74F00
oklch(63% 0.2 39.6)
-
Step 600
600
#C44100
oklch(55.6% 0.177 39.3)
-
Step 700
700
#A53600
oklch(49% 0.155 39.6)
-
Step 800
800
#892B00
oklch(42.8% 0.136 39.4)
-
Step 900
900
#732300
oklch(37.7% 0.119 39.6)
-
Step 950
950 (this color)
#551F0B
oklch(31.8% 0.086 39.5)
#551F0B 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) | #2E2808 | 0.085 |
| Deuteranopia (no green cones) | #3B3409 | 0.077 |
| Tritanopia (no blue cones) | #5E121B | 0.040 |
| Achromatopsia (no color) | #303030 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551F0B
#551F0B
oklch(31.8% 0.086 39.5)
- #003946
#003946
oklch(31.8% 0.057 218.7)
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 #551F0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.052
- Reddy Brown #6E1005 ΔE 0.055
- Claret #680018 ΔE 0.060
- Mahogany #4A0100 ΔE 0.064
- Burgundy #610023 ΔE 0.067
- Chestnut #742802 ΔE 0.075
- Blood #770001 ΔE 0.076
- Dark Brown #341C02 ΔE 0.077
Use #551F0B 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.