#306363
Closest named color: Dark Green Blue (#1F6357). oklch(46.5% 0.055 195.4), rgb(48, 99, 99).
Aa
White text reads best on this color (6.79:1).
About this color
#306363 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.055 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.026 away. White text reads best on it, at 6.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.09:1 |
| White text | 6.79:1 |
Values
| HEX | #306363 |
| RGB | rgb(48, 99, 99) |
| HSL | hsl(180, 35%, 29%) |
| OKLCH | oklch(46.5% 0.055 195.4) |
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 #306363 | 6.79:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #306363 | 3.09:1 | AA large text | Lc 20.7 | Dividers and decoration only |
| #306363 text on white | 6.79:1 | AA | Lc 83.3 | Fine for body text |
| #306363 text on black | 3.09:1 | AA large text | Lc -18.6 | 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
#E4EBEB
oklch(93.5% 0.007 197)
-
Step 200
200
#CFDCDC
oklch(88.5% 0.014 196.9)
-
Step 300
300
#AEC6C6
oklch(80.9% 0.026 196.6)
-
Step 400
400
#82A9A9
oklch(70.6% 0.042 196.2)
-
Step 500
500
#619494
oklch(63.1% 0.055 195.9)
-
Step 600
600
#477E7E
oklch(55.5% 0.058 195.6)
-
Step 700
700 (this color)
#306363
oklch(46.5% 0.055 195.4)
-
Step 800
800
#2F5757
oklch(42.8% 0.045 195.6)
-
Step 900
900
#2A4847
oklch(37.8% 0.036 193)
-
Step 950
950
#192A2A
oklch(27% 0.023 195.9)
#306363 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) | #5D5F63 | 0.057 |
| Deuteranopia (no green cones) | #555863 | 0.054 |
| Tritanopia (no blue cones) | #106663 | 0.021 |
| Achromatopsia (no color) | #5B5B5B | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306363
#306363
oklch(46.5% 0.055 195.4)
- #754D4F
#754D4F
oklch(46.5% 0.054 16.1)
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 #306363, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.026
- Dark Aqua #05696B ΔE 0.026
- Petrol #005F6A ΔE 0.033
- Slate #516572 ΔE 0.048
- Dark Aquamarine #017371 ΔE 0.049
- Deep Turquoise #017374 ΔE 0.050
- YInMn Blue #415A77 ΔE 0.054
- Deep Teal #00555A ΔE 0.058
Use #306363 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.