#20356C
Closest named color: Marine Blue (#01386A). oklch(34.4% 0.099 265.7), rgb(32, 53, 108).
Aa
White text reads best on this color (11.75:1).
About this color
#20356C is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.099 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.024 away. White text reads best on it, at 11.75:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.78:1 |
| White text | 11.75:1 |
Values
| HEX | #20356C |
| RGB | rgb(32, 53, 108) |
| HSL | hsl(223, 54%, 27%) |
| OKLCH | oklch(34.4% 0.099 265.7) |
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 #20356C | 11.75:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #20356C | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #20356C text on white | 11.75:1 | AAA | Lc 96.7 | Preferred for body text |
| #20356C text on black | 1.78:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CCD9F5
oklch(88.4% 0.041 265.7)
-
Step 300
300
#AAC0F2
oklch(80.9% 0.075 266.2)
-
Step 400
400
#7D9EEB
oklch(70.6% 0.119 265.8)
-
Step 500
500
#5D84E5
oklch(63.1% 0.152 265.7)
-
Step 600
600
#446BD3
oklch(55.5% 0.166 265.8)
-
Step 700
700
#3659B7
oklch(49.1% 0.154 265.6)
-
Step 800
800
#2D4994
oklch(42.7% 0.128 265.8)
-
Step 900
900 (this color)
#20356C
oklch(34.4% 0.099 265.7)
-
Step 950
950
#182545
oklch(27.1% 0.062 265.8)
#20356C 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) | #183C6E | 0.021 |
| Deuteranopia (no green cones) | #06356B | 0.021 |
| Tritanopia (no blue cones) | #00424B | 0.082 |
| Achromatopsia (no color) | #383838 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20356C
#20356C
oklch(34.4% 0.099 265.7)
- #493600
#493600
oklch(34.5% 0.071 86.7)
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 #20356C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.038
- Marine #042E60 ΔE 0.041
- Twilight Blue #0A437A ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.062
- Midnight Green #073B4C ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.068
- Midnight Blue #191970 ΔE 0.073
Use #20356C 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.