#18232E
Closest named color: Dark (#1B2431). oklch(25.1% 0.026 248.9), rgb(24, 35, 46).
Aa
White text reads best on this color (15.92:1).
About this color
#18232E is a dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.008 away. White text reads best on it, at 15.92:1.
| Hue family | Neutrals |
| Lightness | dark (25%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.31:1 |
| White text | 15.92:1 |
Values
| HEX | #18232E |
| RGB | rgb(24, 35, 46) |
| HSL | hsl(210, 31%, 14%) |
| OKLCH | oklch(25.1% 0.026 248.9) |
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 #18232E | 15.92:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #18232E | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #18232E text on white | 15.92:1 | AAA | Lc 102.9 | Preferred for body text |
| #18232E text on black | 1.31:1 | 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
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B2C3D4
oklch(81% 0.03 248.2)
-
Step 400
400
#89A4BF
oklch(70.8% 0.05 248.5)
-
Step 500
500
#6C8DAF
oklch(63.1% 0.064 249.6)
-
Step 600
600
#53779A
oklch(55.6% 0.068 248.5)
-
Step 700
700
#436484
oklch(49.2% 0.064 248.5)
-
Step 800
800
#38516B
oklch(42.6% 0.053 250.1)
-
Step 900
900
#304457
oklch(37.8% 0.041 247.7)
-
Step 950
950 (this color)
#18232E
oklch(25.1% 0.026 248.9)
#18232E 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) | #1F232F | 0.012 |
| Deuteranopia (no green cones) | #1C212E | 0.009 |
| Tritanopia (no blue cones) | #102627 | 0.023 |
| Achromatopsia (no color) | #222222 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18232E
#18232E
oklch(25.1% 0.026 248.9)
- #2A2014
#2A2014
oklch(25.2% 0.026 71.3)
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 #18232E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.008
- Jet #212529 ΔE 0.020
- Oxford Blue #1B263B ΔE 0.026
- Rich Black #0D1B2A ΔE 0.035
- Space Cadet #2B2D42 ΔE 0.058
- Gunmetal #293241 ΔE 0.065
- Dark Brown #341C02 ΔE 0.080
- Rich Navy #001219 ΔE 0.083
Use #18232E 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.