#2E3A46
Closest named color: Onyx (#343A40). oklch(34.3% 0.027 248.6), rgb(46, 58, 70).
Aa
White text reads best on this color (11.60:1).
About this color
#2E3A46 is a dark close to neutral grey. In OKLCH its lightness is 34%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.013 away. White text reads best on it, at 11.60:1.
| Hue family | Neutrals |
| Lightness | dark (34%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.80:1 |
| White text | 11.60:1 |
Values
| HEX | #2E3A46 |
| RGB | rgb(46, 58, 70) |
| HSL | hsl(210, 21%, 23%) |
| OKLCH | oklch(34.3% 0.027 248.6) |
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 #2E3A46 | 11.60:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #2E3A46 | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #2E3A46 text on white | 11.60:1 | AAA | Lc 96.7 | Preferred for body text |
| #2E3A46 text on black | 1.80:1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE0
oklch(88.6% 0.011 247.9)
-
Step 300
300
#B7C2CD
oklch(80.9% 0.02 248.1)
-
Step 400
400
#92A3B4
oklch(70.8% 0.031 248.3)
-
Step 500
500
#778CA1
oklch(63.1% 0.04 248.5)
-
Step 600
600
#5F768C
oklch(55.6% 0.044 247.5)
-
Step 700
700
#4F6377
oklch(49.1% 0.04 248.7)
-
Step 800
800
#415161
oklch(42.8% 0.033 248.6)
-
Step 900
900 (this color)
#2E3A46
oklch(34.3% 0.027 248.6)
-
Step 950
950
#20272E
oklch(26.9% 0.016 248.4)
#2E3A46 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) | #353A47 | 0.011 |
| Deuteranopia (no green cones) | #323846 | 0.009 |
| Tritanopia (no blue cones) | #273D3E | 0.023 |
| Achromatopsia (no color) | #393939 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E3A46
#2E3A46
oklch(34.3% 0.027 248.6)
- #42362A
#42362A
oklch(34.2% 0.026 66.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #2E3A46
These curated palettes and gradients contain exactly #2E3A46. Open one to see the full color scheme around it.
Palettes
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.013
- Dark Blue Grey #1F3B4D ΔE 0.021
- Gunmetal #293241 ΔE 0.028
- Charcoal Grey #3C4142 ΔE 0.035
- Midnight Green #073B4C ΔE 0.038
- Charcoal #264653 ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.044
Use #2E3A46 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.