#005B5B
Closest named color: Deep Teal (#00555A). oklch(42.7% 0.073 194.8), rgb(0, 91, 91).
Aa
White text reads best on this color (7.93:1).
About this color
#005B5B is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 43%, its chroma 0.073 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.020 away. White text reads best on it, at 7.93:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.64:1 |
| White text | 7.93:1 |
Values
| HEX | #005B5B |
| RGB | rgb(0, 91, 91) |
| HSL | hsl(180, 100%, 18%) |
| OKLCH | oklch(42.7% 0.073 194.8) |
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 #005B5B | 7.93:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #005B5B | 2.64:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #005B5B text on white | 7.93:1 | AAA | Lc 87.0 | Fine for body text |
| #005B5B text on black | 2.64:1 | Fails | Lc -15.1 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C8DEDE
oklch(88.4% 0.023 196.7)
-
Step 300
300
#A2CAC9
oklch(81% 0.042 194.5)
-
Step 400
400
#6BAEAD
oklch(70.6% 0.068 194.5)
-
Step 500
500
#3C9A99
oklch(63.1% 0.087 194.2)
-
Step 600
600
#028484
oklch(55.5% 0.094 194.8)
-
Step 700
700
#006F6F
oklch(49% 0.084 194.8)
-
Step 800
800 (this color)
#005B5B
oklch(42.7% 0.073 194.8)
-
Step 900
900
#124B4B
oklch(37.8% 0.057 195)
-
Step 950
950
#0D2C2C
oklch(27% 0.036 195.2)
#005B5B 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) | #54565B | 0.076 |
| Deuteranopia (no green cones) | #494E5C | 0.071 |
| Tritanopia (no blue cones) | #005E5B | 0.010 |
| Achromatopsia (no color) | #515151 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005B5B
#005B5B
oklch(42.7% 0.073 194.8)
- #713D42
#713D42
oklch(42.6% 0.073 14.5)
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 #005B5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.020
- Petrol #005F6A ΔE 0.025
- Dark Green Blue #1F6357 ΔE 0.034
- Dark Blue Green #005249 ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.042
- Dark Teal #014D4E ΔE 0.046
- Dark Aqua #05696B ΔE 0.047
- Spruce #0A5F38 ΔE 0.062
Use #005B5B 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.