#205D78
Closest named color: Petrol (#005F6A). oklch(45.2% 0.075 231), rgb(32, 93, 120).
Aa
White text reads best on this color (7.24:1).
About this color
#205D78 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.075 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.031 away. White text reads best on it, at 7.24:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.89:1 |
| White text | 7.24:1 |
Values
| HEX | #205D78 |
| RGB | rgb(32, 93, 120) |
| HSL | hsl(198, 58%, 30%) |
| OKLCH | oklch(45.2% 0.075 231) |
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 #205D78 | 7.24:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #205D78 | 2.89:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #205D78 text on white | 7.24:1 | AAA | Lc 84.9 | Fine for body text |
| #205D78 text on black | 2.89:1 | Fails | Lc -17.1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADCE7
oklch(88.4% 0.025 234.5)
-
Step 300
300
#A5C6D8
oklch(80.8% 0.044 231.9)
-
Step 400
400
#72A9C5
oklch(70.7% 0.071 231.2)
-
Step 500
500
#4993B6
oklch(63% 0.09 231.1)
-
Step 600
600
#267DA2
oklch(55.6% 0.098 231)
-
Step 700
700
#17698B
oklch(49% 0.091 231.5)
-
Step 800
800 (this color)
#205D78
oklch(45.2% 0.075 231)
-
Step 900
900
#1B475B
oklch(37.7% 0.059 230.9)
-
Step 950
950
#112A35
oklch(27.1% 0.037 229)
#205D78 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) | #4F5C79 | 0.051 |
| Deuteranopia (no green cones) | #435378 | 0.044 |
| Tritanopia (no blue cones) | #006466 | 0.045 |
| Achromatopsia (no color) | #575757 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #205D78
#205D78
oklch(45.2% 0.075 231)
- #77492D
#77492D
oklch(45.2% 0.075 51.2)
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 #205D78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.031
- YInMn Blue #415A77 ΔE 0.032
- Light Navy Blue #2E5A88 ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.040
- Denim #3B638C ΔE 0.045
- Peacock Blue #016795 ΔE 0.049
- Dark Aqua #05696B ΔE 0.050
- Light Navy #155084 ΔE 0.050
Use #205D78 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.