#18444F
Closest named color: Charcoal (#264653). oklch(36.1% 0.051 217.1), rgb(24, 68, 79).
Aa
White text reads best on this color (10.61:1).
About this color
#18444F is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.051 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.017 away. White text reads best on it, at 10.61:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.97:1 |
| White text | 10.61:1 |
Values
| HEX | #18444F |
| RGB | rgb(24, 68, 79) |
| HSL | hsl(192, 53%, 20%) |
| OKLCH | oklch(36.1% 0.051 217.1) |
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 #18444F | 10.61:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #18444F | 1.97:1 | Fails | Lc 9.5 | Not readable |
| #18444F text on white | 10.61:1 | AAA | Lc 94.4 | Preferred for body text |
| #18444F text on black | 1.97:1 | Fails | Lc -8.2 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE2
oklch(88.5% 0.022 215.3)
-
Step 300
300
#A6C7D1
oklch(80.9% 0.038 218.1)
-
Step 400
400
#74AABA
oklch(70.6% 0.061 218.3)
-
Step 500
500
#4C95A8
oklch(63% 0.078 217)
-
Step 600
600
#297F94
oklch(55.5% 0.086 217.5)
-
Step 700
700
#1A6B7E
oklch(49% 0.079 217.6)
-
Step 800
800
#1A5866
oklch(42.8% 0.065 216)
-
Step 900
900 (this color)
#18444F
oklch(36.1% 0.051 217.1)
-
Step 950
950
#122A31
oklch(26.9% 0.033 219.1)
#18444F 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) | #3D4250 | 0.045 |
| Deuteranopia (no green cones) | #353C4F | 0.040 |
| Tritanopia (no blue cones) | #004847 | 0.026 |
| Achromatopsia (no color) | #3E3E3E | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18444F
#18444F
oklch(36.1% 0.051 217.1)
- #55342A
#55342A
oklch(36.2% 0.051 37.6)
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 #18444F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.017
- Dark Grey Blue #29465B ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.029
- Dark Teal #014D4E ΔE 0.032
- Midnight Green #073B4C ΔE 0.034
- Onyx #343A40 ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.047
Use #18444F 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.