#18474B
Closest named color: Dark Teal (#014D4E). oklch(36.8% 0.05 203), rgb(24, 71, 75).
Aa
White text reads best on this color (10.28:1).
About this color
#18474B is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.050 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.020 away. White text reads best on it, at 10.28:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.04:1 |
| White text | 10.28:1 |
Values
| HEX | #18474B |
| RGB | rgb(24, 71, 75) |
| HSL | hsl(185, 52%, 19%) |
| OKLCH | oklch(36.8% 0.05 203) |
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 #18474B | 10.28:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #18474B | 2.04:1 | Fails | Lc 10.3 | Not readable |
| #18474B text on white | 10.28:1 | AAA | Lc 93.7 | Preferred for body text |
| #18474B text on black | 2.04:1 | Fails | Lc -8.8 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEDF
oklch(88.6% 0.021 200.4)
-
Step 300
300
#A5C8CB
oklch(80.8% 0.038 202.8)
-
Step 400
400
#72ACB1
oklch(70.6% 0.061 202.7)
-
Step 500
500
#49979E
oklch(63% 0.077 203.2)
-
Step 600
600
#248289
oklch(55.7% 0.084 202.4)
-
Step 700
700
#146D74
oklch(49% 0.078 203.2)
-
Step 800
800
#16595F
oklch(42.7% 0.065 203.9)
-
Step 900
900 (this color)
#18474B
oklch(36.8% 0.05 203)
-
Step 950
950
#112B2D
oklch(27% 0.032 202.1)
#18474B 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) | #41444B | 0.050 |
| Deuteranopia (no green cones) | #393E4B | 0.046 |
| Tritanopia (no blue cones) | #004A48 | 0.017 |
| Achromatopsia (no color) | #414141 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18474B
#18474B
oklch(36.8% 0.05 203)
- #573433
#573433
oklch(36.7% 0.051 21.6)
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 #18474B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.020
- Charcoal #264653 ΔE 0.021
- Dark Grey Blue #29465B ΔE 0.035
- Dark Slate Gray #2F4F4F ΔE 0.038
- Dark Blue Green #005249 ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.044
- Midnight Green #073B4C ΔE 0.045
Use #18474B 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.