#242F39
Closest named color: Gunmetal (#293241). oklch(29.9% 0.024 246.1), rgb(36, 47, 57).
Aa
White text reads best on this color (13.63:1).
About this color
#242F39 is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.018 away. White text reads best on it, at 13.63:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.54:1 |
| White text | 13.63:1 |
Values
| HEX | #242F39 |
| RGB | rgb(36, 47, 57) |
| HSL | hsl(209, 23%, 18%) |
| OKLCH | oklch(29.9% 0.024 246.1) |
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 #242F39 | 13.63:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #242F39 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #242F39 text on white | 13.63:1 | AAA | Lc 100.1 | Preferred for body text |
| #242F39 text on black | 1.54:1 | 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 950.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D1DAE3
oklch(88.4% 0.016 248)
-
Step 300
300
#B2C3D2
oklch(80.9% 0.028 244.8)
-
Step 400
400
#8AA4BB
oklch(70.7% 0.045 245.2)
-
Step 500
500
#6D8DAB
oklch(63% 0.058 247.1)
-
Step 600
600
#557796
oklch(55.6% 0.062 246.7)
-
Step 700
700
#456480
oklch(49.1% 0.058 246.6)
-
Step 800
800
#395268
oklch(42.8% 0.048 245.8)
-
Step 900
900
#314454
oklch(37.7% 0.037 244.4)
-
Step 950
950 (this color)
#242F39
oklch(29.9% 0.024 246.1)
#242F39 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) | #2B2F39 | 0.011 |
| Deuteranopia (no green cones) | #282D39 | 0.009 |
| Tritanopia (no blue cones) | #1E3132 | 0.019 |
| Achromatopsia (no color) | #2E2E2E | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #242F39
#242F39
oklch(29.9% 0.024 246.1)
- #362B21
#362B21
oklch(29.8% 0.024 64)
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 #242F39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.018
- Space Cadet #2B2D42 ΔE 0.023
- Oxford Blue #1B263B ΔE 0.037
- Jet #212529 ΔE 0.040
- Dark #1B2431 ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.046
- Onyx #343A40 ΔE 0.047
- Midnight Green #073B4C ΔE 0.048
Use #242F39 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.