#4F3440
Closest named color: Charcoal Grey (#3C4142). oklch(36.1% 0.043 351.2), rgb(79, 52, 64).
Aa
White text reads best on this color (11.06:1).
About this color
#4F3440 is a dark, muted red. In OKLCH its lightness is 36%, its chroma 0.043 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.049 away. White text reads best on it, at 11.06:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.89:1 |
| White text | 11.06:1 |
Values
| HEX | #4F3440 |
| RGB | rgb(79, 52, 64) |
| HSL | hsl(333, 21%, 26%) |
| OKLCH | oklch(36.1% 0.043 351.2) |
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 #4F3440 | 11.06:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #4F3440 | 1.89:1 | Fails | Lc 8.4 | Not readable |
| #4F3440 text on white | 11.06:1 | AAA | Lc 95.5 | Preferred for body text |
| #4F3440 text on black | 1.89:1 | 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
#EFE7EA
oklch(93.5% 0.01 352.4)
-
Step 200
200
#E3D5DA
oklch(88.6% 0.017 353.7)
-
Step 300
300
#D2B9C3
oklch(81% 0.031 351.7)
-
Step 400
400
#BB94A4
oklch(70.7% 0.051 352)
-
Step 500
500
#A9798E
oklch(63.1% 0.066 351.2)
-
Step 600
600
#946278
oklch(55.6% 0.071 351.7)
-
Step 700
700
#7E5165
oklch(49.1% 0.066 351.6)
-
Step 800
800
#664253
oklch(42.6% 0.056 349.9)
-
Step 900
900 (this color)
#4F3440
oklch(36.1% 0.043 351.2)
-
Step 950
950
#312128
oklch(27% 0.027 351.1)
#4F3440 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) | #373940 | 0.045 |
| Deuteranopia (no green cones) | #3D3E3F | 0.044 |
| Tritanopia (no blue cones) | #533338 | 0.015 |
| Achromatopsia (no color) | #3C3C3C | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F3440
#4F3440
oklch(36.1% 0.043 351.2)
- #24453A
#24453A
oklch(36.1% 0.044 170.3)
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 #4F3440, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.049
- Onyx #343A40 ΔE 0.050
- Purple Brown #673A3F ΔE 0.053
- Gunmetal #293241 ΔE 0.069
- Space Cadet #2B2D42 ΔE 0.073
- Dark Blue Grey #1F3B4D ΔE 0.078
- Charcoal #264653 ΔE 0.078
- Dark Grey Blue #29465B ΔE 0.079
Use #4F3440 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.