#184D55
Closest named color: Dark Teal (#014D4E). oklch(38.9% 0.056 209.2), rgb(24, 77, 85).
Aa
White text reads best on this color (9.41:1).
About this color
#184D55 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.056 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.018 away. White text reads best on it, at 9.41:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.23:1 |
| White text | 9.41:1 |
Values
| HEX | #184D55 |
| RGB | rgb(24, 77, 85) |
| HSL | hsl(188, 56%, 21%) |
| OKLCH | oklch(38.9% 0.056 209.2) |
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 #184D55 | 9.41:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #184D55 | 2.23:1 | Fails | Lc 12.4 | Not readable |
| #184D55 text on white | 9.41:1 | AAA | Lc 91.5 | Preferred for body text |
| #184D55 text on black | 2.23:1 | Fails | Lc -10.8 | 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
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C8DEE1
oklch(88.5% 0.024 206.6)
-
Step 300
300
#A2C9CF
oklch(81% 0.042 207.8)
-
Step 400
400
#6DADB7
oklch(70.8% 0.067 208.3)
-
Step 500
500
#3F98A5
oklch(63.1% 0.086 208.4)
-
Step 600
600
#0D8291
oklch(55.6% 0.094 209.3)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#065964
oklch(42.6% 0.072 209.6)
-
Step 900
900 (this color)
#184D55
oklch(38.9% 0.056 209.2)
-
Step 950
950
#0E2B30
oklch(27% 0.036 210.5)
#184D55 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) | #464A56 | 0.054 |
| Deuteranopia (no green cones) | #3D4355 | 0.050 |
| Tritanopia (no blue cones) | #00514F | 0.022 |
| Achromatopsia (no color) | #464646 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #184D55
#184D55
oklch(38.9% 0.056 209.2)
- #5F3933
#5F3933
oklch(38.9% 0.056 29.5)
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 #184D55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.018
- Charcoal #264653 ΔE 0.024
- Dark Slate Gray #2F4F4F ΔE 0.025
- Deep Teal #00555A ΔE 0.025
- Dark Grey Blue #29465B ΔE 0.031
- Dark Blue Green #005249 ΔE 0.033
- Charcoal Grey #3C4142 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.058
Use #184D55 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.