#182730
Closest named color: Dark (#1B2431). oklch(26.3% 0.026 235.5), rgb(24, 39, 48).
Aa
White text reads best on this color (15.30:1).
About this color
#182730 is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.012 away. White text reads best on it, at 15.30:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.37:1 |
| White text | 15.30:1 |
Values
| HEX | #182730 |
| RGB | rgb(24, 39, 48) |
| HSL | hsl(203, 33%, 14%) |
| OKLCH | oklch(26.3% 0.026 235.5) |
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 #182730 | 15.30:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #182730 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #182730 text on white | 15.30:1 | AAA | Lc 102.2 | Preferred for body text |
| #182730 text on black | 1.37:1 | 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
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AEC4D2
oklch(80.8% 0.031 235.7)
-
Step 400
400
#83A6BC
oklch(70.7% 0.05 236)
-
Step 500
500
#6390AB
oklch(63.1% 0.064 235.5)
-
Step 600
600
#497A97
oklch(55.7% 0.07 235.9)
-
Step 700
700
#3A6780
oklch(49.2% 0.064 234.4)
-
Step 800
800
#305468
oklch(42.7% 0.053 234.2)
-
Step 900
900
#2B4555
oklch(37.6% 0.042 236.5)
-
Step 950
950 (this color)
#182730
oklch(26.3% 0.026 235.5)
#182730 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) | #232730 | 0.017 |
| Deuteranopia (no green cones) | #202430 | 0.015 |
| Tritanopia (no blue cones) | #0F292A | 0.019 |
| Achromatopsia (no color) | #252525 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182730
#182730
oklch(26.3% 0.026 235.5)
- #2F2218
#2F2218
oklch(26.4% 0.027 58.8)
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 #182730, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.012
- Jet #212529 ΔE 0.017
- Oxford Blue #1B263B ΔE 0.023
- Rich Black #0D1B2A ΔE 0.047
- Space Cadet #2B2D42 ΔE 0.049
- Gunmetal #293241 ΔE 0.053
- Midnight Green #073B4C ΔE 0.073
- Dark Blue Grey #1F3B4D ΔE 0.078
Use #182730 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.