#42312D
Closest named color: Onyx (#343A40). oklch(33.1% 0.026 33.5), rgb(66, 49, 45).
Aa
White text reads best on this color (12.28:1).
About this color
#42312D is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.040 away. White text reads best on it, at 12.28:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.70:1 |
| White text | 12.28:1 |
Values
| HEX | #42312D |
| RGB | rgb(66, 49, 45) |
| HSL | hsl(11, 19%, 22%) |
| OKLCH | oklch(33.1% 0.026 33.5) |
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 #42312D | 12.28:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #42312D | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #42312D text on white | 12.28:1 | AAA | Lc 98.0 | Preferred for body text |
| #42312D text on black | 1.70:1 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE8E7
oklch(93.5% 0.006 31.1)
-
Step 200
200
#E0D7D4
oklch(88.5% 0.011 39.4)
-
Step 300
300
#CDBCB9
oklch(80.9% 0.02 29.6)
-
Step 400
400
#B39A94
oklch(70.7% 0.031 33.7)
-
Step 500
500
#A0817A
oklch(63.1% 0.04 32.9)
-
Step 600
600
#8B6B63
oklch(55.7% 0.043 34.4)
-
Step 700
700
#765952
oklch(49.2% 0.04 33.9)
-
Step 800
800
#604943
oklch(42.8% 0.033 35.1)
-
Step 900
900 (this color)
#42312D
oklch(33.1% 0.026 33.5)
-
Step 950
950
#2E2421
oklch(27.1% 0.016 37.3)
#42312D 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) | #35332D | 0.024 |
| Deuteranopia (no green cones) | #39362D | 0.022 |
| Tritanopia (no blue cones) | #462F30 | 0.012 |
| Achromatopsia (no color) | #353535 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42312D
#42312D
oklch(33.1% 0.026 33.5)
- #26393E
#26393E
oklch(33% 0.026 215.9)
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 #42312D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.040
- Charcoal Grey #3C4142 ΔE 0.052
- Gunmetal #293241 ΔE 0.053
- Space Cadet #2B2D42 ΔE 0.060
- Pakistan Green #283618 ΔE 0.064
- Dark Blue Grey #1F3B4D ΔE 0.071
- Jet #212529 ΔE 0.077
- Chocolate Brown #411900 ΔE 0.078
Use #42312D 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.