#306368
Closest named color: Dark Aqua (#05696B). oklch(46.7% 0.055 203.9), rgb(48, 99, 104).
Aa
White text reads best on this color (6.75:1).
About this color
#306368 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.055 and its hue 204°. 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 6.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.11:1 |
| White text | 6.75:1 |
Values
| HEX | #306368 |
| RGB | rgb(48, 99, 104) |
| HSL | hsl(185, 37%, 30%) |
| OKLCH | oklch(46.7% 0.055 203.9) |
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 #306368 | 6.75:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #306368 | 3.11:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #306368 text on white | 6.75:1 | AA | Lc 83.1 | Fine for body text |
| #306368 text on black | 3.11:1 | AA large text | Lc -18.8 | 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
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CEDCDD
oklch(88.4% 0.015 202)
-
Step 300
300
#AEC6C8
oklch(80.9% 0.026 202.8)
-
Step 400
400
#82A9AD
oklch(70.8% 0.043 204)
-
Step 500
500
#619399
oklch(63% 0.054 205.4)
-
Step 600
600
#467E83
oklch(55.7% 0.06 203)
-
Step 700
700 (this color)
#306368
oklch(46.7% 0.055 203.9)
-
Step 800
800
#2E565A
oklch(42.6% 0.046 203.9)
-
Step 900
900
#2A474A
oklch(37.6% 0.035 204.1)
-
Step 950
950
#192A2B
oklch(27.1% 0.023 200.6)
#306368 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) | #5C5F68 | 0.055 |
| Deuteranopia (no green cones) | #535968 | 0.050 |
| Tritanopia (no blue cones) | #096764 | 0.027 |
| Achromatopsia (no color) | #5B5B5B | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306368
#306368
oklch(46.7% 0.055 203.9)
- #764E4B
#764E4B
oklch(46.7% 0.055 24.1)
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 #306368, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.026
- Petrol #005F6A ΔE 0.031
- Dark Green Blue #1F6357 ΔE 0.033
- Slate #516572 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.047
- Deep Turquoise #017374 ΔE 0.049
- Dark Aquamarine #017371 ΔE 0.049
- Deep Teal #00555A ΔE 0.059
Use #306368 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.