#313243
Closest named color: Gunmetal (#293241). oklch(32.4% 0.03 281.9), rgb(49, 50, 67).
Aa
White text reads best on this color (12.59:1).
About this color
#313243 is a dark, muted purple. In OKLCH its lightness is 32%, its chroma 0.030 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.014 away. White text reads best on it, at 12.59:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | muted (0.030) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.66:1 |
| White text | 12.59:1 |
Values
| HEX | #313243 |
| RGB | rgb(49, 50, 67) |
| HSL | hsl(237, 16%, 23%) |
| OKLCH | oklch(32.4% 0.03 281.9) |
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 #313243 | 12.59:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #313243 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #313243 text on white | 12.59:1 | AAA | Lc 98.6 | Preferred for body text |
| #313243 text on black | 1.66:1 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D7D8E1
oklch(88.4% 0.012 281.1)
-
Step 300
300
#BEBFCF
oklch(80.9% 0.022 283)
-
Step 400
400
#9C9EB7
oklch(70.6% 0.036 281.8)
-
Step 500
500
#8487A5
oklch(63.2% 0.045 280.5)
-
Step 600
600
#6E7091
oklch(55.6% 0.051 281.9)
-
Step 700
700
#5C5E7B
oklch(49.2% 0.046 281.5)
-
Step 800
800
#4B4D64
oklch(42.8% 0.038 280.8)
-
Step 900
900 (this color)
#313243
oklch(32.4% 0.03 281.9)
-
Step 950
950
#252530
oklch(26.9% 0.02 285)
#313243 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) | #2D3444 | 0.008 |
| Deuteranopia (no green cones) | #2D3343 | 0.007 |
| Tritanopia (no blue cones) | #2D3538 | 0.026 |
| Achromatopsia (no color) | #333333 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #313243
#313243
oklch(32.4% 0.03 281.9)
- #373422
#373422
oklch(32.3% 0.03 99.8)
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 #313243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.014
- Space Cadet #2B2D42 ΔE 0.020
- Onyx #343A40 ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.043
- Midnight Green #073B4C ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.057
Use #313243 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.