#182F37
Closest named color: Gunmetal (#293241). oklch(29% 0.032 222.4), rgb(24, 47, 55).
Aa
White text reads best on this color (13.99:1).
About this color
#182F37 is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.032 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.033 away. White text reads best on it, at 13.99:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.50:1 |
| White text | 13.99:1 |
Values
| HEX | #182F37 |
| RGB | rgb(24, 47, 55) |
| HSL | hsl(195, 39%, 15%) |
| OKLCH | oklch(29% 0.032 222.4) |
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 #182F37 | 13.99:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #182F37 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #182F37 text on white | 13.99:1 | AAA | Lc 100.6 | Preferred for body text |
| #182F37 text on black | 1.50:1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CBDDE3
oklch(88.6% 0.021 219.7)
-
Step 300
300
#A7C7D3
oklch(81% 0.038 222.5)
-
Step 400
400
#75AABC
oklch(70.7% 0.062 221.2)
-
Step 500
500
#4F94AC
oklch(63.1% 0.078 223)
-
Step 600
600
#2E7E97
oklch(55.5% 0.085 222.4)
-
Step 700
700
#1F6A81
oklch(49% 0.079 222.8)
-
Step 800
800
#1D5769
oklch(42.8% 0.066 222.2)
-
Step 900
900
#1F4855
oklch(37.8% 0.051 221.4)
-
Step 950
950 (this color)
#182F37
oklch(29% 0.032 222.4)
#182F37 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) | #2A2E37 | 0.026 |
| Deuteranopia (no green cones) | #262A37 | 0.025 |
| Tritanopia (no blue cones) | #083232 | 0.021 |
| Achromatopsia (no color) | #2C2C2C | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182F37
#182F37
oklch(29% 0.032 222.4)
- #39261E
#39261E
oklch(28.9% 0.032 43.8)
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 #182F37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.033
- Oxford Blue #1B263B ΔE 0.034
- Jet #212529 ΔE 0.037
- Dark #1B2431 ΔE 0.037
- Space Cadet #2B2D42 ΔE 0.037
- Midnight Green #073B4C ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.059
Use #182F37 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.