#005B50
Closest named color: Dark Blue Green (#005249). oklch(42.2% 0.076 181), rgb(0, 91, 80).
Aa
White text reads best on this color (8.03:1).
About this color
#005B50 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 42%, its chroma 0.076 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.029 away. White text reads best on it, at 8.03:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #005B50 |
| RGB | rgb(0, 91, 80) |
| HSL | hsl(173, 100%, 18%) |
| OKLCH | oklch(42.2% 0.076 181) |
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 #005B50 | 8.03:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #005B50 | 2.61:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #005B50 text on white | 8.03:1 | AAA | Lc 87.3 | Fine for body text |
| #005B50 text on black | 2.61:1 | Fails | Lc -14.8 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C8DFDA
oklch(88.5% 0.025 181.2)
-
Step 300
300
#A2CBC2
oklch(81% 0.045 180.2)
-
Step 400
400
#6CAFA3
oklch(70.6% 0.071 181.5)
-
Step 500
500
#3E9B8C
oklch(63% 0.091 180.9)
-
Step 600
600
#078676
oklch(55.6% 0.099 180.4)
-
Step 700
700
#007163
oklch(49.2% 0.089 180.3)
-
Step 800
800 (this color)
#005B50
oklch(42.2% 0.076 181)
-
Step 900
900
#134C43
oklch(37.8% 0.06 180.2)
-
Step 950
950
#0E2C27
oklch(26.9% 0.037 180.8)
#005B50 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) | #565550 | 0.080 |
| Deuteranopia (no green cones) | #4C4D51 | 0.077 |
| Tritanopia (no blue cones) | #005D58 | 0.013 |
| Achromatopsia (no color) | #505050 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005B50
#005B50
oklch(42.2% 0.076 181)
- #6F3B4B
#6F3B4B
oklch(42.2% 0.076 1.1)
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 #005B50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.029
- Deep Teal #00555A ΔE 0.030
- Dark Green Blue #1F6357 ΔE 0.032
- Petrol #005F6A ΔE 0.042
- Spruce #0A5F38 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.045
- Dark Teal #014D4E ΔE 0.047
- Pine #2B5D34 ΔE 0.048
Use #005B50 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.