#187288
Closest named color: Sea Blue (#047495). oklch(51.2% 0.086 219), rgb(24, 114, 136).
Aa
White text reads best on this color (5.52:1).
About this color
#187288 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.086 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.020 away. White text reads best on it, at 5.52:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.80:1 |
| White text | 5.52:1 |
Values
| HEX | #187288 |
| RGB | rgb(24, 114, 136) |
| HSL | hsl(192, 70%, 31%) |
| OKLCH | oklch(51.2% 0.086 219) |
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 #187288 | 5.52:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #187288 | 3.80:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #187288 text on white | 5.52:1 | AA | Lc 77.2 | Fine for body text |
| #187288 text on black | 3.80:1 | AA large text | Lc -24.5 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A4C8D3
oklch(81% 0.041 218.3)
-
Step 400
400
#70ABBD
oklch(70.7% 0.067 219.1)
-
Step 500
500
#4596AC
oklch(63.2% 0.085 218.3)
-
Step 600
600
#1E8098
oklch(55.7% 0.092 218.8)
-
Step 700
700 (this color)
#187288
oklch(51.2% 0.086 219)
-
Step 800
800
#115869
oklch(42.7% 0.071 218.4)
-
Step 900
900
#184855
oklch(37.5% 0.055 219)
-
Step 950
950
#102B32
oklch(27.1% 0.035 217.1)
#187288 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) | #646F89 | 0.072 |
| Deuteranopia (no green cones) | #566488 | 0.065 |
| Tritanopia (no blue cones) | #007979 | 0.038 |
| Achromatopsia (no color) | #696969 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #187288
#187288
oklch(51.2% 0.086 219)
- #905541
#905541
oklch(51.2% 0.085 39.4)
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 #187288, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.020
- Deep Aqua #08787F ΔE 0.027
- Ocean #017B92 ΔE 0.027
- Ocean Blue #03719C ΔE 0.033
- Deep Turquoise #017374 ΔE 0.036
- Bluegreen #017A79 ΔE 0.040
- Dark Aquamarine #017371 ΔE 0.040
- Peacock Blue #016795 ΔE 0.046
Use #187288 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.