#B4491C
Closest named color: Sinopia (#BB3E03). oklch(54.2% 0.15 40.8), rgb(180, 73, 28).
Aa
White text reads best on this color (5.37:1).
About this color
#B4491C is a medium-dark, vivid orange. In OKLCH its lightness is 54%, its chroma 0.150 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.021 away. White text reads best on it, at 5.37:1.
| Hue family | Oranges |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.91:1 |
| White text | 5.37:1 |
Values
| HEX | #B4491C |
| RGB | rgb(180, 73, 28) |
| HSL | hsl(18, 73%, 41%) |
| OKLCH | oklch(54.2% 0.15 40.8) |
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 #B4491C | 5.37:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #B4491C | 3.91:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #B4491C text on white | 5.37:1 | AA | Lc 76.0 | Fine for body text |
| #B4491C text on black | 3.91:1 | AA large text | Lc -25.8 | Dividers and decoration only |
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 600.
-
Step 50
50
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#F0D2C7
oklch(88.6% 0.037 41.2)
-
Step 300
300
#E8B3A0
oklch(81% 0.068 40.6)
-
Step 400
400
#DA896B
oklch(70.7% 0.108 41)
-
Step 500
500
#CD6943
oklch(63.1% 0.137 40.9)
-
Step 600
600 (this color)
#B4491C
oklch(54.2% 0.15 40.8)
-
Step 700
700
#9F3E13
oklch(49.2% 0.139 41)
-
Step 800
800
#813414
oklch(42.7% 0.115 40.9)
-
Step 900
900
#682E18
oklch(37.7% 0.09 40.6)
-
Step 950
950
#3D1C0F
oklch(27% 0.056 41.6)
#B4491C 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) | #685B14 | 0.145 |
| Deuteranopia (no green cones) | #827417 | 0.134 |
| Tritanopia (no blue cones) | #C62F40 | 0.070 |
| Achromatopsia (no color) | #6A6A6A | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4491C
#B4491C
oklch(54.2% 0.15 40.8)
- #007C97
#007C97
oklch(54.2% 0.099 220.1)
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 #B4491C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.021
- Cinnamon #AC4F06 ΔE 0.024
- Burnt Siena #B75203 ΔE 0.026
- Brick Orange #C14A09 ΔE 0.027
- Burnt Orange #C04E01 ΔE 0.030
- Sienna #A0522D ΔE 0.039
- Burnt Umber #A0450E ΔE 0.043
- Rust Orange #C45508 ΔE 0.045
Use #B4491C 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.