#00596C
Closest named color: Petrol (#005F6A). oklch(42.9% 0.077 218.8), rgb(0, 89, 108).
Aa
White text reads best on this color (7.93:1).
About this color
#00596C is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 43%, its chroma 0.077 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.021 away. White text reads best on it, at 7.93:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.64:1 |
| White text | 7.93:1 |
Values
| HEX | #00596C |
| RGB | rgb(0, 89, 108) |
| HSL | hsl(191, 100%, 21%) |
| OKLCH | oklch(42.9% 0.077 218.8) |
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 #00596C | 7.93:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #00596C | 2.64:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #00596C text on white | 7.93:1 | AAA | Lc 87.0 | Fine for body text |
| #00596C 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C8DDE4
oklch(88.4% 0.024 219.7)
-
Step 300
300
#A1C8D5
oklch(80.9% 0.045 220.1)
-
Step 400
400
#6AACBF
oklch(70.7% 0.073 218.2)
-
Step 500
500
#3B97AF
oklch(63.2% 0.092 218.2)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800 (this color)
#00596C
oklch(42.9% 0.077 218.8)
-
Step 900
900
#114957
oklch(37.7% 0.06 218.5)
-
Step 950
950
#0D2B33
oklch(27.1% 0.038 218.3)
#00596C 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) | #4D566D | 0.065 |
| Deuteranopia (no green cones) | #404D6C | 0.058 |
| Tritanopia (no blue cones) | #005F5F | 0.034 |
| Achromatopsia (no color) | #515151 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00596C
#00596C
oklch(42.9% 0.077 218.8)
- #733F2E
#733F2E
oklch(42.8% 0.078 38.8)
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 #00596C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.021
- Deep Teal #00555A ΔE 0.030
- Deep Sea Blue #015482 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.052
- Dark Aqua #05696B ΔE 0.053
- YInMn Blue #415A77 ΔE 0.054
- Light Navy #155084 ΔE 0.055
- Dark Teal #014D4E ΔE 0.057
Use #00596C 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.