#AC450F
Closest named color: Cinnamon (#AC4F06). oklch(52.2% 0.148 42.8), rgb(172, 69, 15).
Aa
White text reads best on this color (5.81:1).
About this color
#AC450F is a medium-dark, vivid orange. In OKLCH its lightness is 52%, its chroma 0.148 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Cinnamon (#AC4F06), ΔE 0.023 away. White text reads best on it, at 5.81:1.
| Hue family | Oranges |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.148) |
| Temperature | warm |
| Nearest name | Cinnamon (#AC4F06) |
| Black text | 3.61:1 |
| White text | 5.81:1 |
Values
| HEX | #AC450F |
| RGB | rgb(172, 69, 15) |
| HSL | hsl(21, 84%, 37%) |
| OKLCH | oklch(52.2% 0.148 42.8) |
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 #AC450F | 5.81:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #AC450F | 3.61:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #AC450F text on white | 5.81:1 | AA | Lc 78.3 | Fine for body text |
| #AC450F text on black | 3.61:1 | AA large text | Lc -23.5 | 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 700.
-
Step 50
50
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F1D1C5
oklch(88.4% 0.04 41.7)
-
Step 300
300
#E9B29C
oklch(80.8% 0.071 42.8)
-
Step 400
400
#DC8865
oklch(70.7% 0.114 43.2)
-
Step 500
500
#D06739
oklch(63.1% 0.146 42.9)
-
Step 600
600
#BC4B0F
oklch(55.6% 0.159 42.7)
-
Step 700
700 (this color)
#AC450F
oklch(52.2% 0.148 42.8)
-
Step 800
800
#833206
oklch(42.7% 0.122 43)
-
Step 900
900
#6A2D11
oklch(37.8% 0.096 42.9)
-
Step 950
950
#3E1B0C
oklch(27% 0.06 42.8)
#AC450F 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) | #635702 | 0.142 |
| Deuteranopia (no green cones) | #7C6E08 | 0.128 |
| Tritanopia (no blue cones) | #BE2B3C | 0.073 |
| Achromatopsia (no color) | #656565 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC450F
#AC450F
oklch(52.2% 0.148 42.8)
- #007592
#007592
oklch(52.2% 0.097 222.9)
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 #AC450F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cinnamon #AC4F06 ΔE 0.023
- Burnt Umber #A0450E ΔE 0.024
- Sinopia #BB3E03 ΔE 0.029
- Sienna #A0522D ΔE 0.033
- Russet #A13905 ΔE 0.035
- Rusty Red #AF2F0D ΔE 0.038
- Burnt Siena #B75203 ΔE 0.039
- Brick Orange #C14A09 ΔE 0.044
Use #AC450F 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.