#00565F
Closest named color: Deep Teal (#00555A). oklch(41.4% 0.071 207), rgb(0, 86, 95).
Aa
White text reads best on this color (8.41:1).
About this color
#00565F is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 41%, its chroma 0.071 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.008 away. White text reads best on it, at 8.41:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.49:1 |
| White text | 8.41:1 |
Values
| HEX | #00565F |
| RGB | rgb(0, 86, 95) |
| HSL | hsl(186, 100%, 19%) |
| OKLCH | oklch(41.4% 0.071 207) |
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 #00565F | 8.41:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #00565F | 2.49:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #00565F text on white | 8.41:1 | AAA | Lc 88.5 | Fine for body text |
| #00565F text on black | 2.49:1 | Fails | Lc -13.7 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE1
oklch(88.6% 0.023 207.1)
-
Step 300
300
#A2C9CE
oklch(80.9% 0.042 206)
-
Step 400
400
#6DADB6
oklch(70.8% 0.067 207.1)
-
Step 500
500
#4098A3
oklch(63.1% 0.085 206.5)
-
Step 600
600
#10828F
oklch(55.6% 0.092 207.5)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800 (this color)
#00565F
oklch(41.4% 0.071 207)
-
Step 900
900
#144A50
oklch(37.7% 0.056 205.7)
-
Step 950
950
#0E2B2F
oklch(26.9% 0.035 207.5)
#00565F 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) | #4D5260 | 0.069 |
| Deuteranopia (no green cones) | #424A5F | 0.063 |
| Tritanopia (no blue cones) | #005B59 | 0.022 |
| Achromatopsia (no color) | #4D4D4D | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00565F
#00565F
oklch(41.4% 0.071 207)
- #6D3B36
#6D3B36
oklch(41.3% 0.072 26.6)
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 #00565F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.008
- Petrol #005F6A ΔE 0.031
- Dark Teal #014D4E ΔE 0.036
- Dark Slate Gray #2F4F4F ΔE 0.037
- Dark Blue Green #005249 ΔE 0.037
- Charcoal #264653 ΔE 0.051
- Dark Green Blue #1F6357 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.053
Use #00565F 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.