#307366
Closest named color: Dark Aquamarine (#017371). oklch(50.8% 0.071 178.6), rgb(48, 115, 102).
Aa
White text reads best on this color (5.57:1).
About this color
#307366 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.071 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.025 away. White text reads best on it, at 5.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.76:1 |
| White text | 5.57:1 |
Values
| HEX | #307366 |
| RGB | rgb(48, 115, 102) |
| HSL | hsl(168, 41%, 32%) |
| OKLCH | oklch(50.8% 0.071 178.6) |
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 #307366 | 5.57:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #307366 | 3.76:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #307366 text on white | 5.57:1 | AA | Lc 77.6 | Fine for body text |
| #307366 text on black | 3.76:1 | AA large text | Lc -24.1 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDDD9
oklch(88.4% 0.019 180.2)
-
Step 300
300
#AAC8C1
oklch(80.9% 0.034 179.7)
-
Step 400
400
#7BACA1
oklch(70.6% 0.055 179.2)
-
Step 500
500
#57988A
oklch(63.2% 0.071 178.4)
-
Step 600
600
#398274
oklch(55.6% 0.076 178.9)
-
Step 700
700 (this color)
#307366
oklch(50.8% 0.071 178.6)
-
Step 800
800
#255A4F
oklch(42.8% 0.06 177.6)
-
Step 900
900
#244A42
oklch(37.8% 0.046 178.4)
-
Step 950
950
#162B27
oklch(27% 0.028 180.5)
#307366 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) | #6F6C65 | 0.076 |
| Deuteranopia (no green cones) | #646567 | 0.071 |
| Tritanopia (no blue cones) | #01756F | 0.022 |
| Achromatopsia (no color) | #686868 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #307366
#307366
oklch(50.8% 0.071 178.6)
- #875465
#875465
oklch(50.8% 0.071 358.4)
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 #307366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.025
- Deep Turquoise #017374 ΔE 0.028
- Bluegreen #017A79 ΔE 0.032
- Deep Aqua #08787F ΔE 0.038
- Dark Aqua #05696B ΔE 0.044
- Teal #008080 ΔE 0.047
- Dark Green Blue #1F6357 ΔE 0.055
- Slate #516572 ΔE 0.062
Use #307366 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.