#005663
Closest named color: Deep Teal (#00555A). oklch(41.6% 0.073 212.2), rgb(0, 86, 99).
Aa
White text reads best on this color (8.36:1).
About this color
#005663 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 42%, its chroma 0.073 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.015 away. White text reads best on it, at 8.36:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.51:1 |
| White text | 8.36:1 |
Values
| HEX | #005663 |
| RGB | rgb(0, 86, 99) |
| HSL | hsl(188, 100%, 19%) |
| OKLCH | oklch(41.6% 0.073 212.2) |
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 #005663 | 8.36:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #005663 | 2.51:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #005663 text on white | 8.36:1 | AAA | Lc 88.3 | Fine for body text |
| #005663 text on black | 2.51:1 | Fails | Lc -13.8 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DEE2
oklch(88.5% 0.024 209.8)
-
Step 300
300
#A2C8D1
oklch(80.8% 0.042 213.7)
-
Step 400
400
#6DACB9
oklch(70.7% 0.067 212.1)
-
Step 500
500
#3F97A8
oklch(63% 0.087 212.4)
-
Step 600
600
#0E8193
oklch(55.5% 0.094 212.2)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800 (this color)
#005663
oklch(41.6% 0.073 212.2)
-
Step 900
900
#144953
oklch(37.6% 0.056 212.8)
-
Step 950
950
#0E2B31
oklch(27% 0.036 213.3)
#005663 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) | #4C5364 | 0.066 |
| Deuteranopia (no green cones) | #404A63 | 0.060 |
| Tritanopia (no blue cones) | #005B5A | 0.026 |
| Achromatopsia (no color) | #4E4E4E | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005663
#005663
oklch(41.6% 0.073 212.2)
- #6E3C32
#6E3C32
oklch(41.6% 0.073 32.3)
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 #005663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.015
- Petrol #005F6A ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.040
- Dark Teal #014D4E ΔE 0.041
- Dark Blue Green #005249 ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.051
- Charcoal #264653 ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.055
Use #005663 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.