#306563
Closest named color: Dark Aqua (#05696B). oklch(47% 0.057 192.1), rgb(48, 101, 99).
Aa
White text reads best on this color (6.63:1).
About this color
#306563 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.057 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.024 away. White text reads best on it, at 6.63:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.16:1 |
| White text | 6.63:1 |
Values
| HEX | #306563 |
| RGB | rgb(48, 101, 99) |
| HSL | hsl(178, 36%, 29%) |
| OKLCH | oklch(47% 0.057 192.1) |
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 #306563 | 6.63:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #306563 | 3.16:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #306563 text on white | 6.63:1 | AA | Lc 82.6 | Fine for body text |
| #306563 text on black | 3.16:1 | AA large text | Lc -19.3 | 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
#CEDCDC
oklch(88.4% 0.015 196.9)
-
Step 300
300
#ADC7C5
oklch(81% 0.028 190.9)
-
Step 400
400
#81AAA8
oklch(70.8% 0.044 192.5)
-
Step 500
500
#609592
oklch(63.2% 0.057 191.3)
-
Step 600
600
#457F7C
oklch(55.6% 0.061 191.2)
-
Step 700
700 (this color)
#306563
oklch(47% 0.057 192.1)
-
Step 800
800
#2E5756
oklch(42.7% 0.046 193.5)
-
Step 900
900
#294847
oklch(37.7% 0.037 193.1)
-
Step 950
950
#192A29
oklch(27% 0.023 191.2)
#306563 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) | #606063 | 0.061 |
| Deuteranopia (no green cones) | #575A64 | 0.056 |
| Tritanopia (no blue cones) | #0F6864 | 0.020 |
| Achromatopsia (no color) | #5D5D5D | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306563
#306563
oklch(47% 0.057 192.1)
- #774E52
#774E52
oklch(47.1% 0.056 13)
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 #306563, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.024
- Dark Green Blue #1F6357 ΔE 0.026
- Petrol #005F6A ΔE 0.037
- Dark Aquamarine #017371 ΔE 0.044
- Deep Turquoise #017374 ΔE 0.045
- Slate #516572 ΔE 0.048
- YInMn Blue #415A77 ΔE 0.058
- Deep Aqua #08787F ΔE 0.062
Use #306563 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.