#551B00
Closest named color: Chocolate Brown (#411900). oklch(31% 0.093 42.1), rgb(85, 27, 0).
Aa
White text reads best on this color (13.60:1).
About this color
#551B00 is a dark, moderately saturated brown. In OKLCH its lightness is 31%, its chroma 0.093 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.047 away. White text reads best on it, at 13.60:1.
| Hue family | Browns |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.093) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.54:1 |
| White text | 13.60:1 |
Values
| HEX | #551B00 |
| RGB | rgb(85, 27, 0) |
| HSL | hsl(19, 100%, 17%) |
| OKLCH | oklch(31% 0.093 42.1) |
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 #551B00 | 13.60:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #551B00 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #551B00 text on white | 13.60:1 | AAA | Lc 99.5 | Preferred for body text |
| #551B00 text on black | 1.54:1 | 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
#FFF2EE
oklch(97% 0.015 37.9)
-
Step 100
100
#FEE4D9
oklch(93.7% 0.032 44.4)
-
Step 200
200
#FECDBA
oklch(88.6% 0.062 42.2)
-
Step 300
300
#FDA987
oklch(80.9% 0.11 42.8)
-
Step 400
400
#F8743B
oklch(70.7% 0.176 42.2)
-
Step 500
500
#E35600
oklch(63.2% 0.19 42.2)
-
Step 600
600
#BF4700
oklch(55.5% 0.167 42.1)
-
Step 700
700
#A23B00
oklch(49.2% 0.148 42.2)
-
Step 800
800
#862F00
oklch(42.8% 0.129 42)
-
Step 900
900
#702600
oklch(37.6% 0.113 42)
-
Step 950
950 (this color)
#551B00
oklch(31% 0.093 42.1)
#551B00 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) | #2C2600 | 0.091 |
| Deuteranopia (no green cones) | #3A3300 | 0.082 |
| Tritanopia (no blue cones) | #5F0A16 | 0.045 |
| Achromatopsia (no color) | #2E2E2E | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551B00
#551B00
oklch(31% 0.093 42.1)
- #003645
#003645
oklch(30.9% 0.057 222.9)
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 #551B00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.047
- Reddy Brown #6E1005 ΔE 0.056
- Mahogany #4A0100 ΔE 0.058
- Claret #680018 ΔE 0.061
- Burgundy #610023 ΔE 0.069
- Dark Brown #341C02 ΔE 0.074
- Deep Brown #410200 ΔE 0.075
- Blood #770001 ΔE 0.076
Use #551B00 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.