#00585B
Closest named color: Deep Teal (#00555A). oklch(41.8% 0.071 198.8), rgb(0, 88, 91).
Aa
White text reads best on this color (8.24:1).
About this color
#00585B is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 42%, its chroma 0.071 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.010 away. White text reads best on it, at 8.24:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.54:1 |
| White text | 8.24:1 |
Values
| HEX | #00585B |
| RGB | rgb(0, 88, 91) |
| HSL | hsl(182, 100%, 18%) |
| OKLCH | oklch(41.8% 0.071 198.8) |
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 #00585B | 8.24:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #00585B | 2.54:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #00585B text on white | 8.24:1 | AAA | Lc 88.0 | Fine for body text |
| #00585B text on black | 2.54:1 | Fails | Lc -14.2 | 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
#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
#A2C9CB
oklch(80.8% 0.041 200.2)
-
Step 400
400
#6DAEB0
oklch(70.8% 0.067 198.3)
-
Step 500
500
#3F999D
oklch(63.1% 0.085 199.3)
-
Step 600
600
#0C8387
oklch(55.5% 0.092 198.7)
-
Step 700
700
#006F72
oklch(49.2% 0.084 198.1)
-
Step 800
800 (this color)
#00585B
oklch(41.8% 0.071 198.8)
-
Step 900
900
#144A4D
oklch(37.6% 0.055 200.4)
-
Step 950
950
#0E2C2D
oklch(27.1% 0.035 198.3)
#00585B 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) | #51535B | 0.074 |
| Deuteranopia (no green cones) | #454B5B | 0.067 |
| Tritanopia (no blue cones) | #005C59 | 0.015 |
| Achromatopsia (no color) | #4F4F4F | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00585B
#00585B
oklch(41.8% 0.071 198.8)
- #6E3C3D
#6E3C3D
oklch(41.8% 0.07 19.2)
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 #00585B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.010
- Petrol #005F6A ΔE 0.029
- Dark Blue Green #005249 ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.037
- Dark Teal #014D4E ΔE 0.038
- Dark Green Blue #1F6357 ΔE 0.043
- Dark Aqua #05696B ΔE 0.055
- Charcoal #264653 ΔE 0.057
Use #00585B 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.