#284941
Closest named color: Dark Slate Gray (#2F4F4F). oklch(37.7% 0.041 176.6), rgb(40, 73, 65).
Aa
White text reads best on this color (9.90:1).
About this color
#284941 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.041 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.029 away. White text reads best on it, at 9.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.11:1 |
| White text | 9.90:1 |
Values
| HEX | #284941 |
| RGB | rgb(40, 73, 65) |
| HSL | hsl(165, 29%, 22%) |
| OKLCH | oklch(37.7% 0.041 176.6) |
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 #284941 | 9.90:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #284941 | 2.11:1 | Fails | Lc 11.0 | Not readable |
| #284941 text on white | 9.90:1 | AAA | Lc 92.9 | Preferred for body text |
| #284941 text on black | 2.11:1 | Fails | Lc -9.6 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDD9
oklch(88.5% 0.017 178.2)
-
Step 300
300
#ACC8C0
oklch(81% 0.032 176.4)
-
Step 400
400
#80ABA0
oklch(70.7% 0.049 177.3)
-
Step 500
500
#5E9688
oklch(63% 0.063 176.5)
-
Step 600
600
#428172
oklch(55.7% 0.07 176.2)
-
Step 700
700
#336D60
oklch(49.2% 0.065 176.9)
-
Step 800
800
#2C594E
oklch(42.8% 0.053 175.8)
-
Step 900
900 (this color)
#284941
oklch(37.7% 0.041 176.6)
-
Step 950
950
#182B26
oklch(27.1% 0.027 175.7)
#284941 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) | #474541 | 0.045 |
| Deuteranopia (no green cones) | #414142 | 0.042 |
| Tritanopia (no blue cones) | #1D4A47 | 0.013 |
| Achromatopsia (no color) | #434343 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284941
#284941
oklch(37.7% 0.041 176.6)
- #543842
#543842
oklch(37.6% 0.043 356.2)
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 #284941, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.029
- Dark Teal #014D4E ΔE 0.029
- Dark Blue Green #005249 ΔE 0.034
- Charcoal #264653 ΔE 0.036
- Charcoal Grey #3C4142 ΔE 0.037
- Deep Teal #00555A ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.050
- Evergreen #05472A ΔE 0.050
Use #284941 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.