#205F78
Closest named color: Petrol (#005F6A). oklch(45.7% 0.075 228.3), rgb(32, 95, 120).
Aa
White text reads best on this color (7.07:1).
About this color
#205F78 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.075 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.029 away. White text reads best on it, at 7.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.96:1 |
| White text | 7.07:1 |
Values
| HEX | #205F78 |
| RGB | rgb(32, 95, 120) |
| HSL | hsl(197, 58%, 30%) |
| OKLCH | oklch(45.7% 0.075 228.3) |
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 #205F78 | 7.07:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #205F78 | 2.96:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #205F78 text on white | 7.07:1 | AAA | Lc 84.3 | Fine for body text |
| #205F78 text on black | 2.96:1 | Fails | Lc -17.7 | 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
#C9DDE6
oklch(88.5% 0.025 226.5)
-
Step 300
300
#A4C7D7
oklch(80.9% 0.044 227.3)
-
Step 400
400
#71AAC3
oklch(70.8% 0.07 227.4)
-
Step 500
500
#4894B4
oklch(63.1% 0.089 228.2)
-
Step 600
600
#237EA0
oklch(55.7% 0.097 228.1)
-
Step 700
700
#136A89
oklch(49.1% 0.09 228.3)
-
Step 800
800 (this color)
#205F78
oklch(45.7% 0.075 228.3)
-
Step 900
900
#1A475A
oklch(37.6% 0.058 229.1)
-
Step 950
950
#112A35
oklch(27.1% 0.037 229)
#205F78 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) | #525D79 | 0.054 |
| Deuteranopia (no green cones) | #465578 | 0.046 |
| Tritanopia (no blue cones) | #006667 | 0.043 |
| Achromatopsia (no color) | #585858 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #205F78
#205F78
oklch(45.7% 0.075 228.3)
- #794A31
#794A31
oklch(45.8% 0.074 48.2)
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 #205F78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.029
- YInMn Blue #415A77 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.036
- Denim #3B638C ΔE 0.044
- Dark Aqua #05696B ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.046
- Peacock Blue #016795 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.055
Use #205F78 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.