#204F4A
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.3% 0.052 186), rgb(32, 79, 74).
Aa
White text reads best on this color (9.21:1).
About this color
#204F4A is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.052 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.019 away. White text reads best on it, at 9.21:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.27:1 |
| White text | 9.21:1 |
Values
| HEX | #204F4A |
| RGB | rgb(32, 79, 74) |
| HSL | hsl(174, 42%, 22%) |
| OKLCH | oklch(39.3% 0.052 186) |
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 #204F4A | 9.21:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #204F4A | 2.27:1 | Fails | Lc 12.9 | Not readable |
| #204F4A text on white | 9.21:1 | AAA | Lc 91.1 | Preferred for body text |
| #204F4A text on black | 2.27:1 | Fails | Lc -11.3 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDB
oklch(88.5% 0.022 186)
-
Step 300
300
#A5C9C4
oklch(80.8% 0.039 186.1)
-
Step 400
400
#73AEA6
oklch(70.8% 0.063 185.2)
-
Step 500
500
#4A9991
oklch(63.1% 0.079 186.7)
-
Step 600
600
#25847B
oklch(55.7% 0.087 185.8)
-
Step 700
700
#156F67
oklch(49% 0.08 185.7)
-
Step 800
800
#165B54
oklch(42.8% 0.067 185.1)
-
Step 900
900 (this color)
#204F4A
oklch(39.3% 0.052 186)
-
Step 950
950
#112C29
oklch(27.1% 0.034 185.9)
#204F4A 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) | #4B4B4A | 0.055 |
| Deuteranopia (no green cones) | #44454B | 0.053 |
| Tritanopia (no blue cones) | #00514D | 0.016 |
| Achromatopsia (no color) | #484848 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #204F4A
#204F4A
oklch(39.3% 0.052 186)
- #5E3A42
#5E3A42
oklch(39.4% 0.052 5.3)
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 #204F4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.019
- Dark Blue Green #005249 ΔE 0.019
- Dark Teal #014D4E ΔE 0.021
- Deep Teal #00555A ΔE 0.029
- Charcoal #264653 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.051
- Evergreen #05472A ΔE 0.059
Use #204F4A 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.