#187684
Closest named color: Deep Aqua (#08787F). oklch(52.1% 0.084 210.2), rgb(24, 118, 132).
Aa
White text reads best on this color (5.29:1).
About this color
#187684 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.084 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.013 away. White text reads best on it, at 5.29:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #187684 |
| RGB | rgb(24, 118, 132) |
| HSL | hsl(188, 69%, 31%) |
| OKLCH | oklch(52.1% 0.084 210.2) |
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 #187684 | 5.29:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #187684 | 3.96:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #187684 text on white | 5.29:1 | AA | Lc 76.0 | Fine for body text |
| #187684 text on black | 3.96:1 | AA large text | Lc -25.8 | 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 700.
-
Step 50
50
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE1
oklch(88.6% 0.023 207.1)
-
Step 300
300
#A3C8CF
oklch(80.8% 0.041 210.4)
-
Step 400
400
#6FACB7
oklch(70.7% 0.065 210.1)
-
Step 500
500
#4397A5
oklch(63% 0.083 210)
-
Step 600
600
#198191
oklch(55.5% 0.09 210.9)
-
Step 700
700 (this color)
#187684
oklch(52.1% 0.084 210.2)
-
Step 800
800
#0E5964
oklch(42.7% 0.069 210.2)
-
Step 900
900
#174952
oklch(37.6% 0.054 211.7)
-
Step 950
950
#0F2B30
oklch(27% 0.035 210.9)
#187684 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) | #6A7185 | 0.079 |
| Deuteranopia (no green cones) | #5C6784 | 0.072 |
| Tritanopia (no blue cones) | #007C7A | 0.029 |
| Achromatopsia (no color) | #6B6B6B | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #187684
#187684
oklch(52.1% 0.084 210.2)
- #93564C
#93564C
oklch(52.1% 0.083 30.1)
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 #187684, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.013
- Ocean #017B92 ΔE 0.023
- Bluegreen #017A79 ΔE 0.026
- Deep Turquoise #017374 ΔE 0.028
- Sea Blue #047495 ΔE 0.030
- Dark Aquamarine #017371 ΔE 0.032
- Teal #008080 ΔE 0.034
- Ocean Blue #03719C ΔE 0.046
Use #187684 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.