#306D72
Closest named color: Deep Turquoise (#017374). oklch(49.7% 0.063 202.6), rgb(48, 109, 114).
Aa
White text reads best on this color (5.90:1).
About this color
#306D72 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.063 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Turquoise (#017374), ΔE 0.025 away. White text reads best on it, at 5.90:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.55:1 |
| White text | 5.90:1 |
Values
| HEX | #306D72 |
| RGB | rgb(48, 109, 114) |
| HSL | hsl(185, 41%, 32%) |
| OKLCH | oklch(49.7% 0.063 202.6) |
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 #306D72 | 5.90:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #306D72 | 3.55:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #306D72 text on white | 5.90:1 | AA | Lc 79.4 | Fine for body text |
| #306D72 text on black | 3.55:1 | AA large text | Lc -22.5 | 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
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDE
oklch(88.6% 0.017 201.4)
-
Step 300
300
#ABC7C9
oklch(81% 0.03 201.9)
-
Step 400
400
#7DAAAE
oklch(70.7% 0.048 203)
-
Step 500
500
#59959A
oklch(63.1% 0.063 202.5)
-
Step 600
600
#3D7F85
oklch(55.6% 0.068 203.3)
-
Step 700
700 (this color)
#306D72
oklch(49.7% 0.063 202.6)
-
Step 800
800
#28575B
oklch(42.6% 0.051 202.8)
-
Step 900
900
#25484B
oklch(37.7% 0.041 202.8)
-
Step 950
950
#172A2C
oklch(27% 0.025 204.3)
#306D72 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) | #656972 | 0.063 |
| Deuteranopia (no green cones) | #5B6172 | 0.058 |
| Tritanopia (no blue cones) | #00716E | 0.026 |
| Achromatopsia (no color) | #646464 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306D72
#306D72
oklch(49.7% 0.063 202.6)
- #835452
#835452
oklch(49.8% 0.063 22.3)
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 #306D72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.025
- Dark Aquamarine #017371 ΔE 0.027
- Dark Aqua #05696B ΔE 0.030
- Deep Aqua #08787F ΔE 0.035
- Bluegreen #017A79 ΔE 0.040
- Slate #516572 ΔE 0.041
- Dark Green Blue #1F6357 ΔE 0.051
- Sea Blue #047495 ΔE 0.055
Use #306D72 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.