#2C5264
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.8% 0.053 230.3), rgb(44, 82, 100).
Aa
White text reads best on this color (8.40:1).
About this color
#2C5264 is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.053 and its hue 230°. 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 8.40:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.49:1 |
| White text | 8.40:1 |
Values
| HEX | #2C5264 |
| RGB | rgb(44, 82, 100) |
| HSL | hsl(199, 39%, 28%) |
| OKLCH | oklch(41.8% 0.053 230.3) |
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 #2C5264 | 8.40:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #2C5264 | 2.49:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #2C5264 text on white | 8.40:1 | AAA | Lc 88.9 | Fine for body text |
| #2C5264 text on black | 2.49:1 | Fails | Lc -13.3 | 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 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
#CEDBE2
oklch(88.4% 0.017 230.9)
-
Step 300
300
#ADC5D1
oklch(80.9% 0.031 229.3)
-
Step 400
400
#81A7BA
oklch(70.7% 0.05 229.9)
-
Step 500
500
#6191A9
oklch(63.1% 0.063 230.7)
-
Step 600
600
#467B94
oklch(55.6% 0.069 230.1)
-
Step 700
700
#37677E
oklch(49% 0.064 230.8)
-
Step 800
800 (this color)
#2C5264
oklch(41.8% 0.053 230.3)
-
Step 900
900
#2A4653
oklch(37.8% 0.04 229.1)
-
Step 950
950
#192931
oklch(27% 0.026 230.6)
#2C5264 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) | #495165 | 0.037 |
| Deuteranopia (no green cones) | #414B64 | 0.032 |
| Tritanopia (no blue cones) | #085758 | 0.038 |
| Achromatopsia (no color) | #4D4D4D | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C5264
#2C5264
oklch(41.8% 0.053 230.3)
- #644432
#644432
oklch(41.8% 0.053 50.2)
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 #2C5264, closest first.
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 0.036
- Dark Grey Blue #29465B ΔE 0.039
- Petrol #005F6A ΔE 0.043
- Charcoal #264653 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.047
- Dark Teal #014D4E ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.053
Use #2C5264 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.