#00564B
Closest named color: Dark Blue Green (#005249). oklch(40.6% 0.074 180.3), rgb(0, 86, 75).
Aa
White text reads best on this color (8.63:1).
About this color
#00564B is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 41%, its chroma 0.074 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.013 away. White text reads best on it, at 8.63:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.43:1 |
| White text | 8.63:1 |
Values
| HEX | #00564B |
| RGB | rgb(0, 86, 75) |
| HSL | hsl(172, 100%, 17%) |
| OKLCH | oklch(40.6% 0.074 180.3) |
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 #00564B | 8.63:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #00564B | 2.43:1 | Fails | Lc 14.8 | Not readable |
| #00564B text on white | 8.63:1 | AAA | Lc 89.1 | Fine for body text |
| #00564B text on black | 2.43:1 | Fails | Lc -13.1 | Not readable |
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 800.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFDA
oklch(88.6% 0.024 180.6)
-
Step 300
300
#A3CAC2
oklch(80.9% 0.043 181.3)
-
Step 400
400
#6FAFA2
oklch(70.7% 0.069 179.9)
-
Step 500
500
#439B8C
oklch(63.2% 0.088 180.5)
-
Step 600
600
#178576
oklch(55.5% 0.095 180.8)
-
Step 700
700
#007163
oklch(49.2% 0.089 180.3)
-
Step 800
800 (this color)
#00564B
oklch(40.6% 0.074 180.3)
-
Step 900
900
#164B43
oklch(37.6% 0.057 181.3)
-
Step 950
950
#0F2C27
oklch(26.9% 0.036 180.5)
#00564B 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) | #52504B | 0.078 |
| Deuteranopia (no green cones) | #48494C | 0.074 |
| Tritanopia (no blue cones) | #005853 | 0.013 |
| Achromatopsia (no color) | #4C4C4C | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00564B
#00564B
oklch(40.6% 0.074 180.3)
- #693747
#693747
oklch(40.5% 0.074 0.4)
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 #00564B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.013
- Deep Teal #00555A ΔE 0.027
- Dark Teal #014D4E ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.039
- Dark Green Blue #1F6357 ΔE 0.048
- Spruce #0A5F38 ΔE 0.049
- Petrol #005F6A ΔE 0.053
- Pine #2B5D34 ΔE 0.053
Use #00564B 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.