#B7450B
Closest named color: Sinopia (#BB3E03). oklch(54% 0.16 41.5), rgb(183, 69, 11).
Aa
White text reads best on this color (5.42:1).
About this color
#B7450B is a medium-dark, vivid orange. In OKLCH its lightness is 54%, its chroma 0.160 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.013 away. White text reads best on it, at 5.42:1.
| Hue family | Oranges |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.160) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.86:1 |
| White text | 5.42:1 |
Values
| HEX | #B7450B |
| RGB | rgb(183, 69, 11) |
| HSL | hsl(20, 89%, 38%) |
| OKLCH | oklch(54% 0.16 41.5) |
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 #B7450B | 5.42:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #B7450B | 3.86:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #B7450B text on white | 5.42:1 | AA | Lc 76.1 | Fine for body text |
| #B7450B text on black | 3.86:1 | AA large text | Lc -25.6 | 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
#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
#D1663B
oklch(63.1% 0.147 41.5)
-
Step 600
600 (this color)
#B7450B
oklch(54% 0.16 41.5)
-
Step 700
700
#A23A02
oklch(49% 0.148 41.4)
-
Step 800
800
#84310A
oklch(42.7% 0.123 41.3)
-
Step 900
900
#6A2D13
oklch(37.8% 0.095 41.9)
-
Step 950
950
#3E1B0D
oklch(27% 0.06 41.7)
#B7450B 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) | #665A00 | 0.157 |
| Deuteranopia (no green cones) | #827301 | 0.141 |
| Tritanopia (no blue cones) | #CA253B | 0.075 |
| Achromatopsia (no color) | #6A6A6A | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B7450B
#B7450B
oklch(54% 0.16 41.5)
- #007B97
#007B97
oklch(54% 0.099 221.1)
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 #B7450B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.013
- Brick Orange #C14A09 ΔE 0.024
- Burnt Siena #B75203 ΔE 0.028
- Cinnamon #AC4F06 ΔE 0.028
- Burnt Orange #C04E01 ΔE 0.028
- Rust Orange #C45508 ΔE 0.045
- Rusty Red #AF2F0D ΔE 0.045
- Burnt Umber #A0450E ΔE 0.045
Use #B7450B 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.