#2C5364
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.1% 0.052 228.2), rgb(44, 83, 100).
Aa
White text reads best on this color (8.30:1).
About this color
#2C5364 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.052 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.034 away. White text reads best on it, at 8.30:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.52:1 |
| White text | 8.30:1 |
Values
| HEX | #2C5364 |
| RGB | rgb(44, 83, 100) |
| HSL | hsl(198, 39%, 28%) |
| OKLCH | oklch(42.1% 0.052 228.2) |
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 #2C5364 | 8.30:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #2C5364 | 2.52:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #2C5364 text on white | 8.30:1 | AAA | Lc 88.6 | Fine for body text |
| #2C5364 text on black | 2.52:1 | Fails | Lc -13.6 | 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 800.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CEDCE2
oklch(88.6% 0.017 225.2)
-
Step 300
300
#ADC5D0
oklch(80.9% 0.03 227.1)
-
Step 400
400
#81A7B9
oklch(70.7% 0.049 228.5)
-
Step 500
500
#6091A8
oklch(63.1% 0.063 229.1)
-
Step 600
600
#457B93
oklch(55.5% 0.068 228.6)
-
Step 700
700
#36687D
oklch(49.1% 0.063 227.5)
-
Step 800
800 (this color)
#2C5364
oklch(42.1% 0.052 228.2)
-
Step 900
900
#294653
oklch(37.7% 0.041 228.3)
-
Step 950
950
#192930
oklch(27% 0.025 227.2)
#2C5364 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) | #4A5265 | 0.038 |
| Deuteranopia (no green cones) | #424B64 | 0.035 |
| Tritanopia (no blue cones) | #075858 | 0.039 |
| Achromatopsia (no color) | #4E4E4E | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C5364
#2C5364
oklch(42.1% 0.052 228.2)
- #654534
#654534
oklch(42.2% 0.052 48.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #2C5364
These curated palettes and gradients contain exactly #2C5364. Open one to see the full color scheme around it.
Gradients
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.034
- Deep Teal #00555A ΔE 0.035
- Petrol #005F6A ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.042
- YInMn Blue #415A77 ΔE 0.045
- Charcoal #264653 ΔE 0.046
- Dark Teal #014D4E ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.053
Use #2C5364 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.