#43313A
Closest named color: Onyx (#343A40). oklch(33.7% 0.03 347.3), rgb(67, 49, 58).
Aa
White text reads best on this color (12.07:1).
About this color
#43313A is a dark close to neutral grey. In OKLCH its lightness is 34%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.035 away. White text reads best on it, at 12.07:1.
| Hue family | Neutrals |
| Lightness | dark (34%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.73:1 |
| White text | 12.07:1 |
Values
| HEX | #43313A |
| RGB | rgb(67, 49, 58) |
| HSL | hsl(330, 16%, 23%) |
| OKLCH | oklch(33.7% 0.03 347.3) |
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 #43313A | 12.07:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #43313A | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #43313A text on white | 12.07:1 | AAA | Lc 97.6 | Preferred for body text |
| #43313A text on black | 1.73:1 | 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
#F7F5F6
oklch(97.2% 0.002 345.2)
-
Step 100
100
#EDE8EA
oklch(93.5% 0.006 350.8)
-
Step 200
200
#E0D6DA
oklch(88.5% 0.012 351)
-
Step 300
300
#CCBBC3
oklch(80.9% 0.022 347.4)
-
Step 400
400
#B298A5
oklch(70.7% 0.036 346.4)
-
Step 500
500
#9F7F8F
oklch(63.2% 0.045 346.9)
-
Step 600
600
#8A6879
oklch(55.7% 0.05 347.3)
-
Step 700
700
#755666
oklch(49.1% 0.047 346.6)
-
Step 800
800
#5F4753
oklch(42.8% 0.037 347.3)
-
Step 900
900 (this color)
#43313A
oklch(33.7% 0.03 347.3)
-
Step 950
950
#2E2328
oklch(27.1% 0.019 349.4)
#43313A 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) | #32343A | 0.031 |
| Deuteranopia (no green cones) | #36373A | 0.029 |
| Tritanopia (no blue cones) | #463134 | 0.012 |
| Achromatopsia (no color) | #363636 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43313A
#43313A
oklch(33.7% 0.03 347.3)
- #283C34
#283C34
oklch(33.6% 0.029 167.8)
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 #43313A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.035
- Gunmetal #293241 ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.075
- Charcoal #264653 ΔE 0.075
- Dark Grey Blue #29465B ΔE 0.079
Use #43313A 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.