#182728
Closest named color: Jet (#212529). oklch(26% 0.02 201.2), rgb(24, 39, 40).
Aa
White text reads best on this color (15.44:1).
About this color
#182728 is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.016 away. White text reads best on it, at 15.44:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.35:1 |
| White text | 15.44:1 |
Values
| HEX | #182728 |
| RGB | rgb(24, 39, 40) |
| HSL | hsl(184, 25%, 13%) |
| OKLCH | oklch(26% 0.02 201.2) |
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 #182728 | 15.44:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #182728 | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #182728 text on white | 15.44:1 | AAA | Lc 102.3 | Preferred for body text |
| #182728 text on black | 1.35:1 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D0DCDD
oklch(88.6% 0.013 202.9)
-
Step 300
300
#AFC6C7
oklch(81% 0.025 199.9)
-
Step 400
400
#85A8AB
oklch(70.7% 0.038 202.8)
-
Step 500
500
#659396
oklch(63.1% 0.05 201.1)
-
Step 600
600
#4C7D80
oklch(55.6% 0.053 200.7)
-
Step 700
700
#3C696C
oklch(49% 0.05 201.2)
-
Step 800
800
#325658
oklch(42.7% 0.042 200.3)
-
Step 900
900
#2D4749
oklch(37.8% 0.032 202)
-
Step 950
950 (this color)
#182728
oklch(26% 0.02 201.2)
#182728 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) | #252628 | 0.021 |
| Deuteranopia (no green cones) | #222328 | 0.020 |
| Tritanopia (no blue cones) | #122827 | 0.009 |
| Achromatopsia (no color) | #242424 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182728
#182728
oklch(26% 0.02 201.2)
- #2D2020
#2D2020
oklch(25.9% 0.02 18.5)
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 #182728, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.016
- Dark #1B2431 ΔE 0.024
- Oxford Blue #1B263B ΔE 0.038
- Rich Black #0D1B2A ΔE 0.050
- Space Cadet #2B2D42 ΔE 0.060
- Gunmetal #293241 ΔE 0.061
- Dark Brown #341C02 ΔE 0.071
- Pakistan Green #283618 ΔE 0.072
Use #182728 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.