#205C66
Closest named color: Petrol (#005F6A). oklch(44.1% 0.063 210.4), rgb(32, 92, 102).
Aa
White text reads best on this color (7.54:1).
About this color
#205C66 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.063 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.015 away. White text reads best on it, at 7.54:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.78:1 |
| White text | 7.54:1 |
Values
| HEX | #205C66 |
| RGB | rgb(32, 92, 102) |
| HSL | hsl(189, 52%, 26%) |
| OKLCH | oklch(44.1% 0.063 210.4) |
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 #205C66 | 7.54:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #205C66 | 2.78:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #205C66 text on white | 7.54:1 | AAA | Lc 86.0 | Fine for body text |
| #205C66 text on black | 2.78:1 | Fails | Lc -16.1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CBDDE1
oklch(88.5% 0.02 212.6)
-
Step 300
300
#A6C8CE
oklch(81% 0.037 209.5)
-
Step 400
400
#75ABB5
oklch(70.7% 0.058 210.4)
-
Step 500
500
#4D96A3
oklch(63.1% 0.075 210.5)
-
Step 600
600
#2C808E
oklch(55.6% 0.081 210.7)
-
Step 700
700
#1D6C79
oklch(49.1% 0.076 211)
-
Step 800
800 (this color)
#205C66
oklch(44.1% 0.063 210.4)
-
Step 900
900
#1E4950
oklch(37.8% 0.049 209.6)
-
Step 950
950
#132B2F
oklch(27.2% 0.031 209.5)
#205C66 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) | #545967 | 0.060 |
| Deuteranopia (no green cones) | #495166 | 0.053 |
| Tritanopia (no blue cones) | #00605F | 0.024 |
| Achromatopsia (no color) | #545454 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #205C66
#205C66
oklch(44.1% 0.063 210.4)
- #71453E
#71453E
oklch(44% 0.062 29.6)
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 #205C66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.015
- Deep Teal #00555A ΔE 0.034
- Dark Green Blue #1F6357 ΔE 0.039
- Dark Aqua #05696B ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.047
- YInMn Blue #415A77 ΔE 0.047
- Dark Blue Green #005249 ΔE 0.058
- Deep Sea Blue #015482 ΔE 0.061
Use #205C66 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.