#A13718
Closest named color: Brick (#A03623). oklch(48.6% 0.147 36.3), rgb(161, 55, 24).
Aa
White text reads best on this color (6.82:1).
About this color
#A13718 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.147 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.010 away. White text reads best on it, at 6.82:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #A13718 |
| RGB | rgb(161, 55, 24) |
| HSL | hsl(14, 74%, 36%) |
| OKLCH | oklch(48.6% 0.147 36.3) |
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 #A13718 | 6.82:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #A13718 | 3.07:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #A13718 text on white | 6.82:1 | AA | Lc 82.6 | Fine for body text |
| #A13718 text on black | 3.07:1 | AA large text | Lc -19.3 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E5E0
oklch(93.5% 0.021 36)
-
Step 200
200
#F2D1C7
oklch(88.6% 0.04 37.5)
-
Step 300
300
#EAB1A1
oklch(80.9% 0.071 36.3)
-
Step 400
400
#DD866E
oklch(70.7% 0.113 36.2)
-
Step 500
500
#D26547
oklch(63.2% 0.145 36.3)
-
Step 600
600
#BD4827
oklch(55.6% 0.158 36.2)
-
Step 700
700 (this color)
#A13718
oklch(48.6% 0.147 36.3)
-
Step 800
800
#843018
oklch(42.7% 0.121 36.4)
-
Step 900
900
#6A2C1A
oklch(37.7% 0.094 36.9)
-
Step 950
950
#3F1A10
oklch(27% 0.061 36.1)
#A13718 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) | #564C13 | 0.149 |
| Deuteranopia (no green cones) | #706312 | 0.135 |
| Tritanopia (no blue cones) | #B21831 | 0.060 |
| Achromatopsia (no color) | #5B5B5B | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A13718
#A13718
oklch(48.6% 0.147 36.3)
- #006B7F
#006B7F
oklch(48.7% 0.087 216.6)
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 #A13718, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.010
- Russet #A13905 ΔE 0.012
- Rust Red #AA2704 ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.028
- Burnt Umber #A0450E ΔE 0.031
- Brown #A52A2A ΔE 0.032
- Burnt Red #9F2305 ΔE 0.032
- Rufous #AE2012 ΔE 0.037
Use #A13718 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.