#005B5F
Closest named color: Deep Teal (#00555A). oklch(42.8% 0.073 200), rgb(0, 91, 95).
Aa
White text reads best on this color (7.88:1).
About this color
#005B5F is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 43%, its chroma 0.073 and its hue 200°. 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 7.88:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.66:1 |
| White text | 7.88:1 |
Values
| HEX | #005B5F |
| RGB | rgb(0, 91, 95) |
| HSL | hsl(183, 100%, 19%) |
| OKLCH | oklch(42.8% 0.073 200) |
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 #005B5F | 7.88:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #005B5F | 2.66:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #005B5F text on white | 7.88:1 | AAA | Lc 86.9 | Fine for body text |
| #005B5F text on black | 2.66:1 | Fails | Lc -15.2 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C8DEDF
oklch(88.5% 0.024 200.1)
-
Step 300
300
#A1C9CB
oklch(80.8% 0.042 200.1)
-
Step 400
400
#6BAEB1
oklch(70.7% 0.068 199.4)
-
Step 500
500
#3C999E
oklch(63% 0.087 200.2)
-
Step 600
600
#008489
oklch(55.7% 0.095 199.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800 (this color)
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#114B4D
oklch(37.8% 0.057 198.4)
-
Step 950
950
#0D2C2D
oklch(27.1% 0.036 198.2)
#005B5F 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) | #53565F | 0.074 |
| Deuteranopia (no green cones) | #484E5F | 0.069 |
| Tritanopia (no blue cones) | #005F5C | 0.016 |
| Achromatopsia (no color) | #515151 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005B5F
#005B5F
oklch(42.8% 0.073 200)
- #723E3F
#723E3F
oklch(42.8% 0.073 19.3)
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 #005B5F, 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 0.020
- Dark Green Blue #1F6357 ΔE 0.037
- Dark Blue Green #005249 ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.043
- Dark Aqua #05696B ΔE 0.045
- Dark Teal #014D4E ΔE 0.048
- Charcoal #264653 ΔE 0.066
Use #005B5F 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.