#205B5B
Closest named color: Petrol (#005F6A). oklch(43.3% 0.06 195.2), rgb(32, 91, 91).
Aa
White text reads best on this color (7.75:1).
About this color
#205B5B is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.060 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.025 away. White text reads best on it, at 7.75:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #205B5B |
| RGB | rgb(32, 91, 91) |
| HSL | hsl(180, 48%, 24%) |
| OKLCH | oklch(43.3% 0.06 195.2) |
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 #205B5B | 7.75:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #205B5B | 2.70:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #205B5B text on white | 7.75:1 | AAA | Lc 86.7 | Fine for body text |
| #205B5B text on black | 2.70:1 | Fails | Lc -15.4 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CBDDDD
oklch(88.4% 0.019 196.8)
-
Step 300
300
#A7C8C8
oklch(80.9% 0.035 196.5)
-
Step 400
400
#77ACAB
oklch(70.7% 0.056 194.5)
-
Step 500
500
#509797
oklch(63% 0.072 195.5)
-
Step 600
600
#2F8282
oklch(55.7% 0.079 195.1)
-
Step 700
700
#216D6E
oklch(49% 0.072 196.3)
-
Step 800
800 (this color)
#205B5B
oklch(43.3% 0.06 195.2)
-
Step 900
900
#1F4949
oklch(37.6% 0.047 195.3)
-
Step 950
950
#132B2B
oklch(27% 0.03 195.5)
#205B5B 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) | #55575B | 0.062 |
| Deuteranopia (no green cones) | #4C505B | 0.058 |
| Tritanopia (no blue cones) | #005E5B | 0.016 |
| Achromatopsia (no color) | #535353 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #205B5B
#205B5B
oklch(43.3% 0.06 195.2)
- #6E4346
#6E4346
oklch(43.4% 0.06 15.3)
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 #205B5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.025
- Deep Teal #00555A ΔE 0.027
- Dark Green Blue #1F6357 ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.038
- Dark Blue Green #005249 ΔE 0.044
- Dark Aqua #05696B ΔE 0.044
- Dark Teal #014D4E ΔE 0.053
- YInMn Blue #415A77 ΔE 0.062
Use #205B5B 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.