#20506F
Closest named color: Deep Sea Blue (#015482). oklch(41.3% 0.073 240.2), rgb(32, 80, 111).
Aa
White text reads best on this color (8.61:1).
About this color
#20506F is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.073 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.033 away. White text reads best on it, at 8.61:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #20506F |
| RGB | rgb(32, 80, 111) |
| HSL | hsl(204, 55%, 28%) |
| OKLCH | oklch(41.3% 0.073 240.2) |
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 #20506F | 8.61:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #20506F | 2.43:1 | Fails | Lc 14.6 | Not readable |
| #20506F text on white | 8.61:1 | AAA | Lc 89.4 | Fine for body text |
| #20506F text on black | 2.43:1 | Fails | Lc -12.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE8
oklch(88.6% 0.024 240.1)
-
Step 300
300
#A9C5DA
oklch(80.9% 0.042 240.5)
-
Step 400
400
#79A7C7
oklch(70.7% 0.068 239.3)
-
Step 500
500
#5590B9
oklch(63% 0.088 240.4)
-
Step 600
600
#387AA5
oklch(55.6% 0.095 240.1)
-
Step 700
700
#2A678E
oklch(49.2% 0.088 240.1)
-
Step 800
800 (this color)
#20506F
oklch(41.3% 0.073 240.2)
-
Step 900
900
#23455D
oklch(37.6% 0.057 241.3)
-
Step 950
950
#152936
oklch(27% 0.036 238.5)
#20506F 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) | #425070 | 0.039 |
| Deuteranopia (no green cones) | #37486E | 0.032 |
| Tritanopia (no blue cones) | #00585B | 0.051 |
| Achromatopsia (no color) | #4C4C4C | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20506F
#20506F
oklch(41.3% 0.073 240.2)
- #68411E
#68411E
oklch(41.3% 0.073 60.4)
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 #20506F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.033
- Light Navy #155084 ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.040
- Deep Teal #00555A ΔE 0.047
- Charcoal #264653 ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.051
- Dusk Blue #26538D ΔE 0.051
- Petrol #005F6A ΔE 0.051
Use #20506F 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.