#18282F
Closest named color: Dark (#1B2431). oklch(26.6% 0.025 227.2), rgb(24, 40, 47).
Aa
White text reads best on this color (15.17:1).
About this color
#18282F is a dark close to neutral grey. In OKLCH its lightness is 27%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.016 away. White text reads best on it, at 15.17:1.
| Hue family | Neutrals |
| Lightness | dark (27%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.38:1 |
| White text | 15.17:1 |
Values
| HEX | #18282F |
| RGB | rgb(24, 40, 47) |
| HSL | hsl(198, 32%, 14%) |
| OKLCH | oklch(26.6% 0.025 227.2) |
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 #18282F | 15.17:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #18282F | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #18282F text on white | 15.17:1 | AAA | Lc 102.0 | Preferred for body text |
| #18282F text on black | 1.38:1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE2
oklch(88.6% 0.017 225.2)
-
Step 300
300
#ADC5D0
oklch(80.9% 0.03 227.1)
-
Step 400
400
#82A7B8
oklch(70.7% 0.047 227.7)
-
Step 500
500
#6191A6
oklch(63% 0.061 227.3)
-
Step 600
600
#467B92
oklch(55.5% 0.067 227.9)
-
Step 700
700
#38687C
oklch(49.2% 0.061 227.1)
-
Step 800
800
#2F5565
oklch(42.8% 0.051 227.1)
-
Step 900
900
#2A4652
oklch(37.7% 0.04 227)
-
Step 950
950 (this color)
#18282F
oklch(26.6% 0.025 227.2)
#18282F 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) | #24272F | 0.019 |
| Deuteranopia (no green cones) | #21252F | 0.016 |
| Tritanopia (no blue cones) | #0F2A2A | 0.018 |
| Achromatopsia (no color) | #262626 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18282F
#18282F
oklch(26.6% 0.025 227.2)
- #30221B
#30221B
oklch(26.7% 0.025 47.8)
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 #18282F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.016
- Jet #212529 ΔE 0.017
- Oxford Blue #1B263B ΔE 0.027
- Space Cadet #2B2D42 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.051
- Gunmetal #293241 ΔE 0.052
- Midnight Green #073B4C ΔE 0.072
- Dark Blue Grey #1F3B4D ΔE 0.076
Use #18282F 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.