#2C4D61
Closest named color: Dark Grey Blue (#29465B). oklch(40.4% 0.051 236.6), rgb(44, 77, 97).
Aa
White text reads best on this color (8.96:1).
About this color
#2C4D61 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.051 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.023 away. White text reads best on it, at 8.96:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.34:1 |
| White text | 8.96:1 |
Values
| HEX | #2C4D61 |
| RGB | rgb(44, 77, 97) |
| HSL | hsl(203, 38%, 28%) |
| OKLCH | oklch(40.4% 0.051 236.6) |
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 #2C4D61 | 8.96:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #2C4D61 | 2.34:1 | Fails | Lc 13.5 | Not readable |
| #2C4D61 text on white | 8.96:1 | AAA | Lc 90.5 | Preferred for body text |
| #2C4D61 text on black | 2.34:1 | Fails | Lc -11.8 | 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
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AFC4D2
oklch(80.9% 0.03 237)
-
Step 400
400
#85A6BB
oklch(70.8% 0.048 236.3)
-
Step 500
500
#6590AA
oklch(63.2% 0.061 235.6)
-
Step 600
600
#4C7996
oklch(55.5% 0.067 237.9)
-
Step 700
700
#3C6680
oklch(49.1% 0.063 237.1)
-
Step 800
800 (this color)
#2C4D61
oklch(40.4% 0.051 236.6)
-
Step 900
900
#2C4554
oklch(37.7% 0.04 235.6)
-
Step 950
950
#1A2831
oklch(26.8% 0.025 237.2)
#2C4D61 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) | #444C62 | 0.032 |
| Deuteranopia (no green cones) | #3C4761 | 0.026 |
| Tritanopia (no blue cones) | #0E5254 | 0.040 |
| Achromatopsia (no color) | #494949 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C4D61
#2C4D61
oklch(40.4% 0.051 236.6)
- #5E412D
#5E412D
oklch(40.3% 0.051 55.3)
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 #2C4D61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.023
- Charcoal #264653 ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.034
- Deep Teal #00555A ΔE 0.041
- Dark Teal #014D4E ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.056
- Petrol #005F6A ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.057
Use #2C4D61 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.