#4D3440
Closest named color: Onyx (#343A40). oklch(35.8% 0.04 349), rgb(77, 52, 64).
Aa
White text reads best on this color (11.16:1).
About this color
#4D3440 is a dark, muted red. In OKLCH its lightness is 36%, its chroma 0.040 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.047 away. White text reads best on it, at 11.16:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Onyx (#343A40) |
| Black text | 1.88:1 |
| White text | 11.16:1 |
Values
| HEX | #4D3440 |
| RGB | rgb(77, 52, 64) |
| HSL | hsl(331, 19%, 25%) |
| OKLCH | oklch(35.8% 0.04 349) |
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 #4D3440 | 11.16:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #4D3440 | 1.88:1 | Fails | Lc 8.2 | Not readable |
| #4D3440 text on white | 11.16:1 | AAA | Lc 95.7 | Preferred for body text |
| #4D3440 text on black | 1.88:1 | Fails | Lc 0.0 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE8EB
oklch(93.7% 0.009 349.3)
-
Step 200
200
#E2D5DB
oklch(88.5% 0.016 347.7)
-
Step 300
300
#D1B9C4
oklch(80.9% 0.031 348.4)
-
Step 400
400
#B995A5
oklch(70.8% 0.048 349.9)
-
Step 500
500
#A77A8F
oklch(63.1% 0.063 349.4)
-
Step 600
600
#91637A
oklch(55.5% 0.067 348.1)
-
Step 700
700
#7C5266
oklch(49.1% 0.063 349.6)
-
Step 800
800
#654353
oklch(42.7% 0.052 349.8)
-
Step 900
900 (this color)
#4D3440
oklch(35.8% 0.04 349)
-
Step 950
950
#302128
oklch(26.9% 0.026 349.4)
#4D3440 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) | #363940 | 0.043 |
| Deuteranopia (no green cones) | #3C3D3F | 0.040 |
| Tritanopia (no blue cones) | #513338 | 0.015 |
| Achromatopsia (no color) | #3B3B3B | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D3440
#4D3440
oklch(35.8% 0.04 349)
- #264439
#264439
oklch(35.9% 0.041 168.6)
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 #4D3440, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.047
- Purple Brown #673A3F ΔE 0.057
- Gunmetal #293241 ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.070
- Dark Blue Grey #1F3B4D ΔE 0.074
- Charcoal #264653 ΔE 0.076
- Dark Grey Blue #29465B ΔE 0.077
Use #4D3440 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.