#182931
Closest named color: Dark (#1B2431). oklch(27% 0.027 229.2), rgb(24, 41, 49).
Aa
White text reads best on this color (14.99:1).
About this color
#182931 is a dark close to neutral grey. In OKLCH its lightness is 27%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.018 away. White text reads best on it, at 14.99:1.
| Hue family | Neutrals |
| Lightness | dark (27%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.40:1 |
| White text | 14.99:1 |
Values
| HEX | #182931 |
| RGB | rgb(24, 41, 49) |
| HSL | hsl(199, 34%, 14%) |
| OKLCH | oklch(27% 0.027 229.2) |
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 #182931 | 14.99:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #182931 | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #182931 text on white | 14.99:1 | AAA | Lc 101.8 | Preferred for body text |
| #182931 text on black | 1.40:1 | 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
#CEDCE3
oklch(88.6% 0.018 229)
-
Step 300
300
#ACC5D1
oklch(80.9% 0.032 228.3)
-
Step 400
400
#80A7BA
oklch(70.6% 0.051 229.3)
-
Step 500
500
#5E91A9
oklch(63% 0.065 229.3)
-
Step 600
600
#437B95
oklch(55.5% 0.072 229.9)
-
Step 700
700
#34687F
oklch(49.1% 0.067 229.1)
-
Step 800
800
#2C5567
oklch(42.8% 0.055 228.5)
-
Step 900
900
#284654
oklch(37.7% 0.043 229.5)
-
Step 950
950 (this color)
#182931
oklch(27% 0.027 229.2)
#182931 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) | #252831 | 0.020 |
| Deuteranopia (no green cones) | #212531 | 0.018 |
| Tritanopia (no blue cones) | #0E2B2C | 0.018 |
| Achromatopsia (no color) | #272727 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182931
#182931
oklch(27% 0.027 229.2)
- #31231B
#31231B
oklch(27% 0.026 51)
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 #182931, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.018
- Jet #212529 ΔE 0.020
- Oxford Blue #1B263B ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.046
- Gunmetal #293241 ΔE 0.048
- Rich Black #0D1B2A ΔE 0.054
- Midnight Green #073B4C ΔE 0.067
- Dark Blue Grey #1F3B4D ΔE 0.072
Use #182931 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.