#306E5B
Closest named color: Dark Aquamarine (#017371). oklch(49.1% 0.072 170.6), rgb(48, 110, 91).
Aa
White text reads best on this color (5.98:1).
About this color
#306E5B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.072 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.035 away. White text reads best on it, at 5.98:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.50:1 |
| White text | 5.98:1 |
Values
| HEX | #306E5B |
| RGB | rgb(48, 110, 91) |
| HSL | hsl(162, 39%, 31%) |
| OKLCH | oklch(49.1% 0.072 170.6) |
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 #306E5B | 5.98:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #306E5B | 3.50:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #306E5B text on white | 5.98:1 | AA | Lc 79.7 | Fine for body text |
| #306E5B text on black | 3.50:1 | AA large text | Lc -22.1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CDDDD7
oklch(88.4% 0.019 171.4)
-
Step 300
300
#ABC8BD
oklch(80.8% 0.035 170.5)
-
Step 400
400
#7EAC9C
oklch(70.7% 0.055 171.2)
-
Step 500
500
#5B9883
oklch(63.2% 0.072 170)
-
Step 600
600
#3F826D
oklch(55.6% 0.077 170.6)
-
Step 700
700 (this color)
#306E5B
oklch(49.1% 0.072 170.6)
-
Step 800
800
#295A4A
oklch(42.8% 0.06 169.7)
-
Step 900
900
#264A3E
oklch(37.8% 0.047 170.1)
-
Step 950
950
#172B24
oklch(26.9% 0.029 169.8)
#306E5B 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) | #6B675A | 0.074 |
| Deuteranopia (no green cones) | #62605C | 0.071 |
| Tritanopia (no blue cones) | #136F68 | 0.023 |
| Achromatopsia (no color) | #636363 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306E5B
#306E5B
oklch(49.1% 0.072 170.6)
- #805066
#805066
oklch(49.2% 0.071 351)
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 #306E5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.035
- Deep Turquoise #017374 ΔE 0.039
- Dark Green Blue #1F6357 ΔE 0.039
- Dark Aqua #05696B ΔE 0.040
- Bluegreen #017A79 ΔE 0.049
- Deep Aqua #08787F ΔE 0.055
- Dark Olive Green #556B2F ΔE 0.063
- Teal #008080 ΔE 0.065
Use #306E5B 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.