#182D36
Closest named color: Oxford Blue (#1B263B). oklch(28.4% 0.032 227.3), rgb(24, 45, 54).
Aa
White text reads best on this color (14.31:1).
About this color
#182D36 is a dark, muted teal or cyan. In OKLCH its lightness is 28%, its chroma 0.032 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.029 away. White text reads best on it, at 14.31:1.
| Hue family | Teals and cyans |
| Lightness | dark (28%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.46:1 |
| White text | 14.31:1 |
Values
| HEX | #182D36 |
| RGB | rgb(24, 45, 54) |
| HSL | hsl(198, 38%, 15%) |
| OKLCH | oklch(28.4% 0.032 227.3) |
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 #182D36 | 14.31:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #182D36 | 1.46:1 | Fails | Lc 0.0 | Not readable |
| #182D36 text on white | 14.31:1 | AAA | Lc 101.0 | Preferred for body text |
| #182D36 text on black | 1.46:1 | 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
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A8C6D4
oklch(80.9% 0.038 227.7)
-
Step 400
400
#79A9BE
oklch(70.8% 0.06 226.9)
-
Step 500
500
#5493AE
oklch(63.2% 0.077 227.7)
-
Step 600
600
#357D99
oklch(55.6% 0.083 226.9)
-
Step 700
700
#276983
oklch(49.1% 0.078 227.7)
-
Step 800
800
#22566A
oklch(42.7% 0.064 226.6)
-
Step 900
900
#224756
oklch(37.7% 0.049 226.8)
-
Step 950
950 (this color)
#182D36
oklch(28.4% 0.032 227.3)
#182D36 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) | #282C36 | 0.023 |
| Deuteranopia (no green cones) | #242936 | 0.021 |
| Tritanopia (no blue cones) | #093030 | 0.023 |
| Achromatopsia (no color) | #2A2A2A | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182D36
#182D36
oklch(28.4% 0.032 227.3)
- #37251C
#37251C
oklch(28.4% 0.032 47.6)
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 #182D36, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.029
- Dark #1B2431 ΔE 0.030
- Jet #212529 ΔE 0.032
- Gunmetal #293241 ΔE 0.036
- Space Cadet #2B2D42 ΔE 0.038
- Midnight Green #073B4C ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.062
Use #182D36 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.