#18393A
Closest named color: Midnight Green (#073B4C). oklch(32% 0.039 198), rgb(24, 57, 58).
Aa
White text reads best on this color (12.46:1).
About this color
#18393A is a dark, muted teal or cyan. In OKLCH its lightness is 32%, its chroma 0.039 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.032 away. White text reads best on it, at 12.46:1.
| Hue family | Teals and cyans |
| Lightness | dark (32%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.68:1 |
| White text | 12.46:1 |
Values
| HEX | #18393A |
| RGB | rgb(24, 57, 58) |
| HSL | hsl(182, 41%, 16%) |
| OKLCH | oklch(32% 0.039 198) |
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 #18393A | 12.46:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #18393A | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #18393A text on white | 12.46:1 | AAA | Lc 98.2 | Preferred for body text |
| #18393A text on black | 1.68:1 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E0EDED
oklch(93.6% 0.014 196.9)
-
Step 200
200
#C7DFDF
oklch(88.6% 0.026 196.7)
-
Step 300
300
#9FCACB
oklch(80.9% 0.045 198.1)
-
Step 400
400
#66AFB1
oklch(70.7% 0.073 197.9)
-
Step 500
500
#319B9E
oklch(63.2% 0.094 197.8)
-
Step 600
600
#008487
oklch(55.6% 0.095 197.6)
-
Step 700
700
#006F72
oklch(49.2% 0.084 198.1)
-
Step 800
800
#005B5D
oklch(42.7% 0.073 197.4)
-
Step 900
900
#084B4D
oklch(37.6% 0.061 198.1)
-
Step 950
950 (this color)
#18393A
oklch(32% 0.039 198)
#18393A 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) | #35363A | 0.040 |
| Deuteranopia (no green cones) | #2F323A | 0.037 |
| Tritanopia (no blue cones) | #033B39 | 0.016 |
| Achromatopsia (no color) | #343434 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18393A
#18393A
oklch(32% 0.039 198)
- #452B2B
#452B2B
oklch(32.1% 0.039 19.4)
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 #18393A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.035
- Gunmetal #293241 ΔE 0.037
- Onyx #343A40 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.052
- Pakistan Green #283618 ΔE 0.053
- Charcoal #264653 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.059
Use #18393A 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.