#553840
Closest named color: Purple Brown (#673A3F). oklch(37.7% 0.043 1.3), rgb(85, 56, 64).
Aa
White text reads best on this color (10.36:1).
About this color
#553840 is a dark, muted red. In OKLCH its lightness is 38%, its chroma 0.043 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.037 away. White text reads best on it, at 10.36:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.02:1 |
| White text | 10.36:1 |
Values
| HEX | #553840 |
| RGB | rgb(85, 56, 64) |
| HSL | hsl(343, 21%, 28%) |
| OKLCH | oklch(37.7% 0.043 1.3) |
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 #553840 | 10.36:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #553840 | 2.02:1 | Fails | Lc 9.9 | Not readable |
| #553840 text on white | 10.36:1 | AAA | Lc 94.0 | Preferred for body text |
| #553840 text on black | 2.02:1 | Fails | Lc -8.6 | Not readable |
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 900.
-
Step 50
50
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#F0E7E9
oklch(93.6% 0.01 2)
-
Step 200
200
#E4D4D8
oklch(88.4% 0.018 0.4)
-
Step 300
300
#D4B8BF
oklch(80.9% 0.033 1)
-
Step 400
400
#BD949E
oklch(70.8% 0.051 2.2)
-
Step 500
500
#AC7987
oklch(63.2% 0.066 1.2)
-
Step 600
600
#976170
oklch(55.6% 0.073 1.7)
-
Step 700
700
#80505E
oklch(49% 0.067 0.9)
-
Step 800
800
#68424D
oklch(42.6% 0.055 0.9)
-
Step 900
900 (this color)
#553840
oklch(37.7% 0.043 1.3)
-
Step 950
950
#322125
oklch(27% 0.027 3.5)
#553840 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) | #3C3D40 | 0.046 |
| Deuteranopia (no green cones) | #43423F | 0.043 |
| Tritanopia (no blue cones) | #5A363B | 0.012 |
| Achromatopsia (no color) | #404040 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553840
#553840
oklch(37.7% 0.043 1.3)
- #264943
#264943
oklch(37.7% 0.042 181.6)
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 #553840, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.049
- Onyx #343A40 ΔE 0.059
- Brownish Purple #76424E ΔE 0.075
- Charcoal #264653 ΔE 0.080
- Dark Grey Blue #29465B ΔE 0.081
- Gunmetal #293241 ΔE 0.084
- Dark Slate Gray #2F4F4F ΔE 0.084
Use #553840 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.