#20566F
Closest named color: Petrol (#005F6A). oklch(42.9% 0.07 231.7), rgb(32, 86, 111).
Aa
White text reads best on this color (8.00:1).
About this color
#20566F is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.070 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.034 away. White text reads best on it, at 8.00:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.62:1 |
| White text | 8.00:1 |
Values
| HEX | #20566F |
| RGB | rgb(32, 86, 111) |
| HSL | hsl(199, 55%, 28%) |
| OKLCH | oklch(42.9% 0.07 231.7) |
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 #20566F | 8.00:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #20566F | 2.62:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #20566F text on white | 8.00:1 | AAA | Lc 87.5 | Fine for body text |
| #20566F text on black | 2.62:1 | Fails | Lc -14.6 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2EBF0
oklch(93.5% 0.012 231.7)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D7
oklch(80.9% 0.041 231.9)
-
Step 400
400
#77A8C2
oklch(70.6% 0.065 232)
-
Step 500
500
#5192B3
oklch(63% 0.083 232.3)
-
Step 600
600
#317C9F
oklch(55.5% 0.091 232)
-
Step 700
700
#236988
oklch(49.2% 0.084 231.4)
-
Step 800
800 (this color)
#20566F
oklch(42.9% 0.07 231.7)
-
Step 900
900
#204759
oklch(37.8% 0.054 230.4)
-
Step 950
950
#142934
oklch(26.9% 0.034 232.8)
#20566F 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) | #4A5570 | 0.047 |
| Deuteranopia (no green cones) | #3F4D6F | 0.040 |
| Tritanopia (no blue cones) | #005D5E | 0.044 |
| Achromatopsia (no color) | #505050 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20566F
#20566F
oklch(42.9% 0.07 231.7)
- #6E442A
#6E442A
oklch(43% 0.07 51.7)
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 #20566F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.036
- YInMn Blue #415A77 ΔE 0.041
- Deep Teal #00555A ΔE 0.041
- Light Navy #155084 ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.053
Use #20566F 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.