#18505E
Closest named color: Deep Teal (#00555A). oklch(40.2% 0.061 217.8), rgb(24, 80, 94).
Aa
White text reads best on this color (8.94:1).
About this color
#18505E is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.061 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.021 away. White text reads best on it, at 8.94:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.34:1 |
| White text | 8.94:1 |
Values
| HEX | #18505E |
| RGB | rgb(24, 80, 94) |
| HSL | hsl(192, 59%, 23%) |
| OKLCH | oklch(40.2% 0.061 217.8) |
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 #18505E | 8.94:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #18505E | 2.34:1 | Fails | Lc 13.7 | Not readable |
| #18505E text on white | 8.94:1 | AAA | Lc 90.3 | Preferred for body text |
| #18505E text on black | 2.34:1 | Fails | Lc -12.0 | 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 900.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#A0C8D4
oklch(80.8% 0.046 218)
-
Step 400
400
#69ACBF
oklch(70.7% 0.073 217.9)
-
Step 500
500
#3897AF
oklch(63.1% 0.094 217.8)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900 (this color)
#18505E
oklch(40.2% 0.061 217.8)
-
Step 950
950
#0C2B33
oklch(27% 0.039 217.8)
#18505E 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) | #474E5F | 0.053 |
| Deuteranopia (no green cones) | #3D465E | 0.048 |
| Tritanopia (no blue cones) | #005554 | 0.029 |
| Achromatopsia (no color) | #494949 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18505E
#18505E
oklch(40.2% 0.061 217.8)
- #653C30
#653C30
oklch(40.2% 0.062 37.1)
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 #18505E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.021
- Dark Slate Gray #2F4F4F ΔE 0.030
- Dark Teal #014D4E ΔE 0.031
- Charcoal #264653 ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.033
- Dark Blue Green #005249 ΔE 0.042
- Petrol #005F6A ΔE 0.046
- Deep Sea Blue #015482 ΔE 0.059
Use #18505E 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.