#005B6D
Closest named color: Petrol (#005F6A). oklch(43.5% 0.078 217.3), rgb(0, 91, 109).
Aa
White text reads best on this color (7.72:1).
About this color
#005B6D is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 43%, its chroma 0.078 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.015 away. White text reads best on it, at 7.72:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.71:1 |
| White text | 7.72:1 |
Values
| HEX | #005B6D |
| RGB | rgb(0, 91, 109) |
| HSL | hsl(190, 100%, 21%) |
| OKLCH | oklch(43.5% 0.078 217.3) |
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 #005B6D | 7.72:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #005B6D | 2.71:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #005B6D text on white | 7.72:1 | AAA | Lc 86.3 | Fine for body text |
| #005B6D text on black | 2.71:1 | Fails | Lc -15.7 | 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 800.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C8DEE4
oklch(88.6% 0.025 215.9)
-
Step 300
300
#A0C8D4
oklch(80.8% 0.046 218)
-
Step 400
400
#6AACBE
oklch(70.7% 0.072 217.1)
-
Step 500
500
#3997AE
oklch(63.1% 0.093 217.1)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800 (this color)
#005B6D
oklch(43.5% 0.078 217.3)
-
Step 900
900
#104957
oklch(37.7% 0.061 218.3)
-
Step 950
950
#0C2B33
oklch(27% 0.039 217.8)
#005B6D 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) | #4F586E | 0.066 |
| Deuteranopia (no green cones) | #424F6D | 0.059 |
| Tritanopia (no blue cones) | #006161 | 0.032 |
| Achromatopsia (no color) | #535353 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005B6D
#005B6D
oklch(43.5% 0.078 217.3)
- #754131
#754131
oklch(43.5% 0.077 37.9)
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 #005B6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.015
- Deep Teal #00555A ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.046
- Dark Aqua #05696B ΔE 0.047
- YInMn Blue #415A77 ΔE 0.052
- Dark Green Blue #1F6357 ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.056
Use #005B6D 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.