#185D55
Closest named color: Dark Green Blue (#1F6357). oklch(43.4% 0.068 183.9), rgb(24, 93, 85).
Aa
White text reads best on this color (7.67:1).
About this color
#185D55 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.068 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.021 away. White text reads best on it, at 7.67:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #185D55 |
| RGB | rgb(24, 93, 85) |
| HSL | hsl(173, 59%, 23%) |
| OKLCH | oklch(43.4% 0.068 183.9) |
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 #185D55 | 7.67:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #185D55 | 2.73:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #185D55 text on white | 7.67:1 | AAA | Lc 86.4 | Fine for body text |
| #185D55 text on black | 2.73:1 | Fails | Lc -15.7 | Dividers and decoration only |
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 800.
-
Step 50
50
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDB
oklch(88.5% 0.022 186)
-
Step 300
300
#A5C9C3
oklch(80.8% 0.039 184.1)
-
Step 400
400
#72AEA5
oklch(70.7% 0.064 184.1)
-
Step 500
500
#499A8F
oklch(63.2% 0.081 183.7)
-
Step 600
600
#238479
oklch(55.6% 0.088 183.9)
-
Step 700
700
#137066
oklch(49.2% 0.082 183.7)
-
Step 800
800 (this color)
#185D55
oklch(43.4% 0.068 183.9)
-
Step 900
900
#1A4B45
oklch(37.8% 0.053 184.2)
-
Step 950
950
#112C28
oklch(27% 0.034 182.9)
#185D55 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) | #585755 | 0.072 |
| Deuteranopia (no green cones) | #4E5056 | 0.068 |
| Tritanopia (no blue cones) | #005F5A | 0.010 |
| Achromatopsia (no color) | #535353 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #185D55
#185D55
oklch(43.4% 0.068 183.9)
- #70404D
#70404D
oklch(43.3% 0.069 2.9)
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 #185D55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.021
- Deep Teal #00555A ΔE 0.033
- Petrol #005F6A ΔE 0.033
- Dark Blue Green #005249 ΔE 0.041
- Dark Aqua #05696B ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.045
- Spruce #0A5F38 ΔE 0.050
- Pine #2B5D34 ΔE 0.051
Use #185D55 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.