#B34F09
Closest named color: Burnt Siena (#B75203). oklch(54.8% 0.148 47.1), rgb(179, 79, 9).
Aa
White text reads best on this color (5.19:1).
About this color
#B34F09 is a medium-dark, vivid orange. In OKLCH its lightness is 55%, its chroma 0.148 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.011 away. White text reads best on it, at 5.19:1.
| Hue family | Oranges |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.148) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.03:1 |
| White text | 5.19:1 |
Values
| HEX | #B34F09 |
| RGB | rgb(179, 79, 9) |
| HSL | hsl(25, 90%, 37%) |
| OKLCH | oklch(54.8% 0.148 47.1) |
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 #B34F09 | 5.19:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #B34F09 | 4.03:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #B34F09 text on white | 5.19:1 | AA | Lc 75.1 | Fine for body text |
| #B34F09 text on black | 4.03:1 | AA large text | Lc -26.7 | 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
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F5E6DF
oklch(93.5% 0.019 46.8)
-
Step 200
200
#EFD2C5
oklch(88.4% 0.037 45.6)
-
Step 300
300
#E6B49C
oklch(80.9% 0.067 46.9)
-
Step 400
400
#D78B66
oklch(70.6% 0.106 46.5)
-
Step 500
500
#CA6C39
oklch(63% 0.136 47.2)
-
Step 600
600 (this color)
#B34F09
oklch(54.8% 0.148 47.1)
-
Step 700
700
#9C4200
oklch(49.2% 0.136 47)
-
Step 800
800
#7F3706
oklch(42.8% 0.114 47.5)
-
Step 900
900
#663011
oklch(37.6% 0.088 47.3)
-
Step 950
950
#3C1D0C
oklch(27% 0.056 47.7)
#B34F09 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) | #6C5F00 | 0.135 |
| Deuteranopia (no green cones) | #847502 | 0.122 |
| Tritanopia (no blue cones) | #C53744 | 0.081 |
| Achromatopsia (no color) | #6D6D6D | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B34F09
#B34F09
oklch(54.8% 0.148 47.1)
- #007CA1
#007CA1
oklch(54.7% 0.106 227.7)
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 #B34F09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.011
- Cinnamon #AC4F06 ΔE 0.014
- Burnt Orange #C04E01 ΔE 0.025
- Brick Orange #C14A09 ΔE 0.027
- Sinopia #BB3E03 ΔE 0.033
- Rust Orange #C45508 ΔE 0.037
- Raw Umber #A75E09 ΔE 0.039
- Orangey Brown #B16002 ΔE 0.039
Use #B34F09 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.