#18544E
Closest named color: Dark Blue Green (#005249). oklch(40.6% 0.061 185.6), rgb(24, 84, 78).
Aa
White text reads best on this color (8.68:1).
About this color
#18544E is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.061 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.016 away. White text reads best on it, at 8.68:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.41:1 |
| White text | 8.68:1 |
Values
| HEX | #18544E |
| RGB | rgb(24, 84, 78) |
| HSL | hsl(174, 56%, 21%) |
| OKLCH | oklch(40.6% 0.061 185.6) |
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 #18544E | 8.68:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #18544E | 2.41:1 | Fails | Lc 14.4 | Not readable |
| #18544E text on white | 8.68:1 | AAA | Lc 89.5 | Fine for body text |
| #18544E text on black | 2.41:1 | Fails | Lc -12.7 | 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 800.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CBDEDB
oklch(88.6% 0.021 185.4)
-
Step 300
300
#A8C9C4
oklch(81% 0.036 185.3)
-
Step 400
400
#77ADA6
oklch(70.8% 0.058 185.9)
-
Step 500
500
#519890
oklch(63.1% 0.073 186.1)
-
Step 600
600
#31827A
oklch(55.5% 0.079 186.2)
-
Step 700
700
#226E67
oklch(49.1% 0.074 186.3)
-
Step 800
800 (this color)
#18544E
oklch(40.6% 0.061 185.6)
-
Step 900
900
#204A45
oklch(37.7% 0.048 185.1)
-
Step 950
950
#142B28
oklch(26.9% 0.03 184.8)
#18544E 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) | #4F4F4E | 0.064 |
| Deuteranopia (no green cones) | #47494F | 0.061 |
| Tritanopia (no blue cones) | #005652 | 0.011 |
| Achromatopsia (no color) | #4B4B4B | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18544E
#18544E
oklch(40.6% 0.061 185.6)
- #653B44
#653B44
oklch(40.6% 0.06 6.2)
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 #18544E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.016
- Deep Teal #00555A ΔE 0.020
- Dark Slate Gray #2F4F4F ΔE 0.025
- Dark Teal #014D4E ΔE 0.028
- Dark Green Blue #1F6357 ΔE 0.049
- Petrol #005F6A ΔE 0.049
- Charcoal #264653 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.059
Use #18544E 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.