#A33B05
Closest named color: Russet (#A13905). oklch(49.4% 0.148 41.3), rgb(163, 59, 5).
Aa
White text reads best on this color (6.59:1).
About this color
#A33B05 is a medium-dark, vivid orange. In OKLCH its lightness is 49%, its chroma 0.148 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Russet (#A13905), ΔE 0.006 away. White text reads best on it, at 6.59:1.
| Hue family | Oranges |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.148) |
| Temperature | warm |
| Nearest name | Russet (#A13905) |
| Black text | 3.18:1 |
| White text | 6.59:1 |
Values
| HEX | #A33B05 |
| RGB | rgb(163, 59, 5) |
| HSL | hsl(21, 94%, 33%) |
| OKLCH | oklch(49.4% 0.148 41.3) |
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 #A33B05 | 6.59:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #A33B05 | 3.18:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #A33B05 text on white | 6.59:1 | AA | Lc 81.7 | Fine for body text |
| #A33B05 text on black | 3.18:1 | AA large text | Lc -20.2 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
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
#EAB29D
oklch(81% 0.072 41.5)
-
Step 400
400
#DD8767
oklch(70.7% 0.115 41.1)
-
Step 500
500
#D1663C
oklch(63.1% 0.147 41.2)
-
Step 600
600
#BC4A15
oklch(55.5% 0.159 41.4)
-
Step 700
700 (this color)
#A33B05
oklch(49.4% 0.148 41.3)
-
Step 800
800
#84310B
oklch(42.7% 0.123 41.1)
-
Step 900
900
#6A2C13
oklch(37.6% 0.096 41)
-
Step 950
950
#3E1B0D
oklch(27% 0.06 41.7)
#A33B05 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) | #5A4E00 | 0.144 |
| Deuteranopia (no green cones) | #736600 | 0.132 |
| Tritanopia (no blue cones) | #B41D32 | 0.069 |
| Achromatopsia (no color) | #5D5D5D | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A33B05
#A33B05
oklch(49.4% 0.148 41.3)
- #006C86
#006C86
oklch(49.3% 0.091 222.1)
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 #A33B05, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Russet #A13905 ΔE 0.006
- Burnt Umber #A0450E ΔE 0.019
- Brick #A03623 ΔE 0.025
- Rusty Red #AF2F0D ΔE 0.029
- Rust Red #AA2704 ΔE 0.033
- Burnt Red #9F2305 ΔE 0.043
- Rufous #AE2012 ΔE 0.045
- Brown #A52A2A ΔE 0.045
Use #A33B05 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.