#99373D
Closest named color: Brown (#A52A2A). oklch(47.8% 0.131 20), rgb(153, 55, 61).
Aa
White text reads best on this color (7.07:1).
About this color
#99373D is a medium-dark, moderately saturated red. In OKLCH its lightness is 48%, its chroma 0.131 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.032 away. White text reads best on it, at 7.07:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.131) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 2.96:1 |
| White text | 7.07:1 |
Values
| HEX | #99373D |
| RGB | rgb(153, 55, 61) |
| HSL | hsl(356, 47%, 41%) |
| OKLCH | oklch(47.8% 0.131 20) |
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 #99373D | 7.07:1 | AAA | Lc -88.7 | Fine for body text |
| Black text on #99373D | 2.96:1 | Fails | Lc 20.3 | Dividers and decoration only |
| #99373D text on white | 7.07:1 | AAA | Lc 83.8 | Fine for body text |
| #99373D text on black | 2.96:1 | Fails | Lc -18.2 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E5E5
oklch(93.5% 0.019 17.5)
-
Step 200
200
#F0D0CF
oklch(88.4% 0.036 20)
-
Step 300
300
#E7B1B0
oklch(80.9% 0.063 19.8)
-
Step 400
400
#D98686
oklch(70.7% 0.102 19.9)
-
Step 500
500
#CC6668
oklch(63.1% 0.13 20.2)
-
Step 600
600
#B74B50
oklch(55.6% 0.14 20.1)
-
Step 700
700 (this color)
#99373D
oklch(47.8% 0.131 20)
-
Step 800
800
#803235
oklch(42.8% 0.108 20.6)
-
Step 900
900
#672C2E
oklch(37.6% 0.085 20)
-
Step 950
950
#3D1B1B
oklch(27.1% 0.053 21.2)
#99373D 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) | #4F4B3D | 0.143 |
| Deuteranopia (no green cones) | #68603B | 0.131 |
| Tritanopia (no blue cones) | #A7243A | 0.036 |
| Achromatopsia (no color) | #585858 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99373D
#99373D
oklch(47.8% 0.131 20)
- #006A6F
#006A6F
oklch(47.7% 0.081 200.5)
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 #99373D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.032
- Brick #A03623 ΔE 0.033
- Auburn #9B2226 ΔE 0.036
- Light Maroon #A24857 ΔE 0.049
- Burnt Red #9F2305 ΔE 0.051
- Rouge #AB1239 ΔE 0.052
- Light Burgundy #A8415B ΔE 0.054
- Russet #A13905 ΔE 0.054
Use #99373D 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.