#306C67
Closest named color: Dark Aqua (#05696B). oklch(49% 0.063 188), rgb(48, 108, 103).
Aa
White text reads best on this color (6.05:1).
About this color
#306C67 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.063 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.026 away. White text reads best on it, at 6.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #306C67 |
| RGB | rgb(48, 108, 103) |
| HSL | hsl(175, 38%, 31%) |
| OKLCH | oklch(49% 0.063 188) |
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 #306C67 | 6.05:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #306C67 | 3.46:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #306C67 text on white | 6.05:1 | AA | Lc 80.1 | Fine for body text |
| #306C67 text on black | 3.46:1 | AA large text | Lc -21.7 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CDDDDB
oklch(88.5% 0.017 187.8)
-
Step 300
300
#ABC7C4
oklch(80.8% 0.03 188.7)
-
Step 400
400
#7EABA6
oklch(70.7% 0.049 187.6)
-
Step 500
500
#5B9690
oklch(63.1% 0.063 187.5)
-
Step 600
600
#3F807B
oklch(55.6% 0.067 188.8)
-
Step 700
700 (this color)
#306C67
oklch(49% 0.063 188)
-
Step 800
800
#295854
oklch(42.6% 0.052 188.1)
-
Step 900
900
#264946
oklch(37.8% 0.041 188.5)
-
Step 950
950
#172B29
oklch(27.1% 0.026 187.7)
#306C67 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) | #676767 | 0.067 |
| Deuteranopia (no green cones) | #5D5F68 | 0.064 |
| Tritanopia (no blue cones) | #046E6A | 0.021 |
| Achromatopsia (no color) | #626262 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306C67
#306C67
oklch(49% 0.063 188)
- #7F515A
#7F515A
oklch(48.9% 0.063 6.9)
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 #306C67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.026
- Dark Aquamarine #017371 ΔE 0.027
- Deep Turquoise #017374 ΔE 0.028
- Dark Green Blue #1F6357 ΔE 0.038
- Bluegreen #017A79 ΔE 0.044
- Deep Aqua #08787F ΔE 0.044
- Slate #516572 ΔE 0.048
- Petrol #005F6A ΔE 0.054
Use #306C67 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.