#B12713
Closest named color: Rufous (#AE2012). oklch(49.8% 0.177 31.4), rgb(177, 39, 19).
Aa
White text reads best on this color (6.62:1).
About this color
#B12713 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.177 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Rufous (#AE2012), ΔE 0.012 away. White text reads best on it, at 6.62:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.177) |
| Temperature | warm |
| Nearest name | Rufous (#AE2012) |
| Black text | 3.16:1 |
| White text | 6.62:1 |
Values
| HEX | #B12713 |
| RGB | rgb(177, 39, 19) |
| HSL | hsl(8, 81%, 38%) |
| OKLCH | oklch(49.8% 0.177 31.4) |
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 #B12713 | 6.62:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #B12713 | 3.16:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #B12713 text on white | 6.62:1 | AA | Lc 81.2 | Fine for body text |
| #B12713 text on black | 3.16:1 | AA large text | Lc -20.6 | 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 700.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E0
oklch(93.6% 0.025 29.9)
-
Step 200
200
#F7CEC6
oklch(88.4% 0.048 30.9)
-
Step 300
300
#F3AC9F
oklch(80.9% 0.086 30.6)
-
Step 400
400
#E97D6A
oklch(70.6% 0.137 31.2)
-
Step 500
500
#DF5641
oklch(63% 0.175 31.2)
-
Step 600
600
#CB341F
oklch(55.7% 0.191 31.2)
-
Step 700
700 (this color)
#B12713
oklch(49.8% 0.177 31.4)
-
Step 800
800
#8E2112
oklch(42.7% 0.147 31.2)
-
Step 900
900
#722317
oklch(37.7% 0.114 31.4)
-
Step 950
950
#43160E
oklch(27% 0.072 32.1)
#B12713 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) | #53490D | 0.189 |
| Deuteranopia (no green cones) | #756807 | 0.171 |
| Tritanopia (no blue cones) | #C40025 | 0.046 |
| Achromatopsia (no color) | #5D5D5D | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B12713
#B12713
oklch(49.8% 0.177 31.4)
- #006F7F
#006F7F
oklch(49.7% 0.087 212)
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 #B12713, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rufous #AE2012 ΔE 0.012
- Rusty Red #AF2F0D ΔE 0.012
- Firebrick #B22222 ΔE 0.014
- Rust Red #AA2704 ΔE 0.017
- Brown #A52A2A ΔE 0.030
- Scarlet #BE0119 ΔE 0.034
- Brick #A03623 ΔE 0.035
- Burnt Red #9F2305 ΔE 0.040
Use #B12713 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.