#306A73
Closest named color: Dark Aqua (#05696B). oklch(48.9% 0.062 208.8), rgb(48, 106, 115).
Aa
White text reads best on this color (6.11:1).
About this color
#306A73 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.062 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.028 away. White text reads best on it, at 6.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.43:1 |
| White text | 6.11:1 |
Values
| HEX | #306A73 |
| RGB | rgb(48, 106, 115) |
| HSL | hsl(188, 41%, 32%) |
| OKLCH | oklch(48.9% 0.062 208.8) |
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 #306A73 | 6.11:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #306A73 | 3.43:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #306A73 text on white | 6.11:1 | AA | Lc 80.4 | Fine for body text |
| #306A73 text on black | 3.43:1 | AA large text | Lc -21.5 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E4ECED
oklch(93.7% 0.009 205.9)
-
Step 200
200
#CDDCDF
oklch(88.4% 0.017 211)
-
Step 300
300
#ABC6CB
oklch(80.8% 0.03 210.1)
-
Step 400
400
#7EA9B1
oklch(70.6% 0.048 210.3)
-
Step 500
500
#5B949D
oklch(63.1% 0.061 208.5)
-
Step 600
600
#3F7E88
oklch(55.5% 0.066 209)
-
Step 700
700 (this color)
#306A73
oklch(48.9% 0.062 208.8)
-
Step 800
800
#29575E
oklch(42.7% 0.051 208.4)
-
Step 900
900
#26484D
oklch(37.8% 0.04 207.8)
-
Step 950
950
#172A2D
oklch(27% 0.025 208.4)
#306A73 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) | #626674 | 0.060 |
| Deuteranopia (no green cones) | #575F73 | 0.053 |
| Tritanopia (no blue cones) | #006E6D | 0.029 |
| Achromatopsia (no color) | #626262 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306A73
#306A73
oklch(48.9% 0.062 208.8)
- #80534C
#80534C
oklch(49% 0.062 29.2)
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 #306A73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.028
- Deep Turquoise #017374 ΔE 0.032
- Dark Aquamarine #017371 ΔE 0.034
- Slate #516572 ΔE 0.037
- Deep Aqua #08787F ΔE 0.042
- Petrol #005F6A ΔE 0.047
- Bluegreen #017A79 ΔE 0.049
- Dark Green Blue #1F6357 ΔE 0.050
Use #306A73 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.