#644548
Closest named color: Purple Brown (#673A3F). oklch(42.6% 0.043 12.6), rgb(100, 69, 72).
Aa
White text reads best on this color (8.44:1).
About this color
#644548 is a dark, muted red. In OKLCH its lightness is 43%, its chroma 0.043 and its hue 13°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.029 away. White text reads best on it, at 8.44:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.48:1 |
| White text | 8.44:1 |
Values
| HEX | #644548 |
| RGB | rgb(100, 69, 72) |
| HSL | hsl(354, 18%, 33%) |
| OKLCH | oklch(42.6% 0.043 12.6) |
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 #644548 | 8.44:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #644548 | 2.48:1 | Fails | Lc 15.0 | Not readable |
| #644548 text on white | 8.44:1 | AAA | Lc 89.0 | Fine for body text |
| #644548 text on black | 2.48:1 | Fails | Lc -13.2 | 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 800.
-
Step 50
50
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EFE8E8
oklch(93.6% 0.008 17.3)
-
Step 200
200
#E2D6D6
oklch(88.6% 0.013 17.4)
-
Step 300
300
#D0BABC
oklch(80.8% 0.025 11.4)
-
Step 400
400
#B8979A
oklch(70.7% 0.04 12)
-
Step 500
500
#A67D81
oklch(63.1% 0.051 12.1)
-
Step 600
600
#91666A
oklch(55.6% 0.056 12.9)
-
Step 700
700
#7B5558
oklch(49.1% 0.051 13.9)
-
Step 800
800 (this color)
#644548
oklch(42.6% 0.043 12.6)
-
Step 900
900
#523A3D
oklch(37.6% 0.034 10.5)
-
Step 950
950
#302223
oklch(26.9% 0.022 13.8)
#644548 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) | #4A4A48 | 0.047 |
| Deuteranopia (no green cones) | #514F47 | 0.043 |
| Tritanopia (no blue cones) | #6A4246 | 0.013 |
| Achromatopsia (no color) | #4D4D4D | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644548
#644548
oklch(42.6% 0.043 12.6)
- #315655
#315655
oklch(42.5% 0.043 193.5)
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 #644548, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.029
- Brownish Purple #76424E ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.074
- Mud Brown #60460F ΔE 0.075
- Dusty Grape #545775 ΔE 0.078
- Dark Mauve #874C62 ΔE 0.081
- Milk Chocolate #7F4E1E ΔE 0.084
- Dark Slate Gray #2F4F4F ΔE 0.084
Use #644548 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.