#913B3B
Closest named color: Brick (#A03623). oklch(47% 0.117 22.7), rgb(145, 59, 59).
Aa
White text reads best on this color (7.25:1).
About this color
#913B3B is a medium-dark, moderately saturated red. In OKLCH its lightness is 47%, its chroma 0.117 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.038 away. White text reads best on it, at 7.25:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 2.89:1 |
| White text | 7.25:1 |
Values
| HEX | #913B3B |
| RGB | rgb(145, 59, 59) |
| HSL | hsl(0, 42%, 40%) |
| OKLCH | oklch(47% 0.117 22.7) |
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 #913B3B | 7.25:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #913B3B | 2.89:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #913B3B text on white | 7.25:1 | AAA | Lc 84.6 | Fine for body text |
| #913B3B text on black | 2.89:1 | Fails | Lc -17.4 | 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 700.
-
Step 50
50
#FBF4F3
oklch(97.2% 0.008 27.2)
-
Step 100
100
#F5E6E5
oklch(93.7% 0.016 22.1)
-
Step 200
200
#EDD2D0
oklch(88.6% 0.03 22.8)
-
Step 300
300
#E3B3B0
oklch(80.9% 0.056 22.5)
-
Step 400
400
#D38A86
oklch(70.7% 0.09 23)
-
Step 500
500
#C66B68
oklch(63.1% 0.116 22.9)
-
Step 600
600
#B15150
oklch(55.6% 0.126 22.6)
-
Step 700
700 (this color)
#913B3B
oklch(47% 0.117 22.7)
-
Step 800
800
#7B3636
oklch(42.6% 0.097 22)
-
Step 900
900
#64302F
oklch(37.8% 0.075 22.4)
-
Step 950
950
#3B1C1B
oklch(27% 0.049 22.8)
#913B3B 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) | #504B3A | 0.125 |
| Deuteranopia (no green cones) | #665E39 | 0.116 |
| Tritanopia (no blue cones) | #9F2C3C | 0.036 |
| Achromatopsia (no color) | #575757 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #913B3B
#913B3B
oklch(47% 0.117 22.7)
- #00686E
#00686E
oklch(47.1% 0.08 201.8)
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 #913B3B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.038
- Auburn #9B2226 ΔE 0.043
- Brown #A52A2A ΔE 0.045
- Red Brown #8B2E16 ΔE 0.045
- Brown Red #922B05 ΔE 0.050
- Rust Brown #8B3103 ΔE 0.053
- Burnt Red #9F2305 ΔE 0.054
- Russet #A13905 ΔE 0.055
Use #913B3B 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.