#307663
Closest named color: Dark Aquamarine (#017371). oklch(51.5% 0.077 172.6), rgb(48, 118, 99).
Aa
White text reads best on this color (5.38:1).
About this color
#307663 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.077 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.032 away. White text reads best on it, at 5.38:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.89:1 |
| White text | 5.38:1 |
Values
| HEX | #307663 |
| RGB | rgb(48, 118, 99) |
| HSL | hsl(164, 42%, 33%) |
| OKLCH | oklch(51.5% 0.077 172.6) |
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 #307663 | 5.38:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #307663 | 3.89:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #307663 text on white | 5.38:1 | AA | Lc 76.6 | Fine for body text |
| #307663 text on black | 3.89:1 | AA large text | Lc -25.1 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED8
oklch(88.5% 0.021 173.9)
-
Step 300
300
#A9C9BE
oklch(80.9% 0.038 172.5)
-
Step 400
400
#7AAD9D
oklch(70.7% 0.059 173.1)
-
Step 500
500
#559985
oklch(63.2% 0.076 172.7)
-
Step 600
600
#36836E
oklch(55.6% 0.083 172.5)
-
Step 700
700 (this color)
#307663
oklch(51.5% 0.077 172.6)
-
Step 800
800
#235A4B
oklch(42.6% 0.064 172.5)
-
Step 900
900
#224A3F
oklch(37.6% 0.05 173.4)
-
Step 950
950
#152B25
oklch(26.9% 0.03 174.4)
#307663 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) | #726F62 | 0.079 |
| Deuteranopia (no green cones) | #686764 | 0.076 |
| Tritanopia (no blue cones) | #037770 | 0.025 |
| Achromatopsia (no color) | #6A6A6A | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #307663
#307663
oklch(51.5% 0.077 172.6)
- #8A556C
#8A556C
oklch(51.6% 0.077 352.5)
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 #307663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.032
- Bluegreen #017A79 ΔE 0.034
- Deep Turquoise #017374 ΔE 0.036
- Deep Aqua #08787F ΔE 0.043
- Teal #008080 ΔE 0.045
- Dark Aqua #05696B ΔE 0.054
- Dark Green Blue #1F6357 ΔE 0.063
- Dark Moss Green #606C38 ΔE 0.068
Use #307663 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.