#424533
Closest named color: Charcoal Grey (#3C4142). oklch(38.2% 0.03 115.5), rgb(66, 69, 51).
Aa
White text reads best on this color (9.85:1).
About this color
#424533 is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.033 away. White text reads best on it, at 9.85:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.13:1 |
| White text | 9.85:1 |
Values
| HEX | #424533 |
| RGB | rgb(66, 69, 51) |
| HSL | hsl(70, 15%, 24%) |
| OKLCH | oklch(38.2% 0.03 115.5) |
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 #424533 | 9.85:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #424533 | 2.13:1 | Fails | Lc 11.1 | Not readable |
| #424533 text on white | 9.85:1 | AAA | Lc 92.9 | Preferred for body text |
| #424533 text on black | 2.13:1 | Fails | Lc -9.6 | 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
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#E9EAE6
oklch(93.5% 0.005 117.9)
-
Step 200
200
#D8DAD1
oklch(88.4% 0.012 116.8)
-
Step 300
300
#C0C3B3
oklch(81% 0.022 115.5)
-
Step 400
400
#9FA48B
oklch(70.8% 0.036 116.5)
-
Step 500
500
#888D6E
oklch(63.1% 0.045 115.1)
-
Step 600
600
#727756
oklch(55.6% 0.049 115)
-
Step 700
700
#5F6446
oklch(49% 0.046 115.8)
-
Step 800
800
#4E523A
oklch(42.8% 0.038 115.7)
-
Step 900
900 (this color)
#424533
oklch(38.2% 0.03 115.5)
-
Step 950
950
#26281D
oklch(27.1% 0.02 116.1)
#424533 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) | #484332 | 0.011 |
| Deuteranopia (no green cones) | #474334 | 0.011 |
| Tritanopia (no blue cones) | #444340 | 0.025 |
| Achromatopsia (no color) | #434343 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424533
#424533
oklch(38.2% 0.03 115.5)
- #444051
#444051
oklch(38.2% 0.029 295.8)
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 #424533, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.049
- Onyx #343A40 ΔE 0.054
- Dark Olive #373E02 ΔE 0.061
- Charcoal #264653 ΔE 0.061
- Mud Brown #60460F ΔE 0.063
- Dark Blue Green #005249 ΔE 0.066
- Dark Teal #014D4E ΔE 0.067
Use #424533 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.