#B34813
Closest named color: Sinopia (#BB3E03). oklch(53.8% 0.152 42.3), rgb(179, 72, 19).
Aa
White text reads best on this color (5.45:1).
About this color
#B34813 is a medium-dark, vivid orange. In OKLCH its lightness is 54%, its chroma 0.152 and its hue 42°. 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 5.45:1.
| Hue family | Oranges |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.85:1 |
| White text | 5.45:1 |
Values
| HEX | #B34813 |
| RGB | rgb(179, 72, 19) |
| HSL | hsl(20, 81%, 39%) |
| OKLCH | oklch(53.8% 0.152 42.3) |
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 #B34813 | 5.45:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #B34813 | 3.85:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #B34813 text on white | 5.45:1 | AA | Lc 76.4 | Fine for body text |
| #B34813 text on black | 3.85:1 | AA large text | Lc -25.4 | 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
#F0D2C6
oklch(88.6% 0.038 43.1)
-
Step 300
300
#E8B39E
oklch(81% 0.069 42.6)
-
Step 400
400
#DA8969
oklch(70.7% 0.109 42.2)
-
Step 500
500
#CE693F
oklch(63.2% 0.14 42.3)
-
Step 600
600 (this color)
#B34813
oklch(53.8% 0.152 42.3)
-
Step 700
700
#9F3E0B
oklch(49.1% 0.141 42.5)
-
Step 800
800
#81340F
oklch(42.7% 0.116 42.6)
-
Step 900
900
#682E15
oklch(37.6% 0.091 42.4)
-
Step 950
950
#3D1C0E
oklch(27% 0.057 42.9)
#B34813 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) | #675A07 | 0.146 |
| Deuteranopia (no green cones) | #81730C | 0.133 |
| Tritanopia (no blue cones) | #C52D3E | 0.073 |
| Achromatopsia (no color) | #696969 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B34813
#B34813
oklch(53.8% 0.152 42.3)
- #007A98
#007A98
oklch(53.8% 0.1 222.9)
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 #B34813, 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 0.021
- Burnt Siena #B75203 ΔE 0.026
- Brick Orange #C14A09 ΔE 0.029
- Burnt Orange #C04E01 ΔE 0.031
- Sienna #A0522D ΔE 0.039
- Burnt Umber #A0450E ΔE 0.039
- Rusty Red #AF2F0D ΔE 0.047
Use #B34813 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.