#306573
Closest named color: Dark Aqua (#05696B). oklch(47.6% 0.06 217.4), rgb(48, 101, 115).
Aa
White text reads best on this color (6.49:1).
About this color
#306573 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.060 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.031 away. White text reads best on it, at 6.49:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.23:1 |
| White text | 6.49:1 |
Values
| HEX | #306573 |
| RGB | rgb(48, 101, 115) |
| HSL | hsl(193, 41%, 32%) |
| OKLCH | oklch(47.6% 0.06 217.4) |
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 #306573 | 6.49:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #306573 | 3.23:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #306573 text on white | 6.49:1 | AA | Lc 82.0 | Fine for body text |
| #306573 text on black | 3.23:1 | AA large text | Lc -19.9 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#ACC6CD
oklch(80.9% 0.03 215.8)
-
Step 400
400
#80A8B4
oklch(70.7% 0.047 218.2)
-
Step 500
500
#5E93A1
oklch(63.1% 0.06 216.3)
-
Step 600
600
#437D8C
oklch(55.6% 0.065 216.6)
-
Step 700
700 (this color)
#306573
oklch(47.6% 0.06 217.4)
-
Step 800
800
#2C5661
oklch(42.7% 0.05 216.8)
-
Step 900
900
#28474F
oklch(37.7% 0.039 216.1)
-
Step 950
950
#18292E
oklch(26.8% 0.024 218.3)
#306573 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) | #5C6274 | 0.053 |
| Deuteranopia (no green cones) | #525B73 | 0.047 |
| Tritanopia (no blue cones) | #006A69 | 0.036 |
| Achromatopsia (no color) | #5E5E5E | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306573
#306573
oklch(47.6% 0.06 217.4)
- #7B5144
#7B5144
oklch(47.8% 0.061 37.9)
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 #306573, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.031
- Slate #516572 ΔE 0.037
- Petrol #005F6A ΔE 0.037
- YInMn Blue #415A77 ΔE 0.039
- Deep Turquoise #017374 ΔE 0.046
- Denim #3B638C ΔE 0.046
- Dark Aquamarine #017371 ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.049
Use #306573 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.