#2D4560
Closest named color: Dark Grey Blue (#29465B). oklch(38.3% 0.055 252.2), rgb(45, 69, 96).
Aa
White text reads best on this color (9.85:1).
About this color
#2D4560 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.055 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.011 away. White text reads best on it, at 9.85:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.13:1 |
| White text | 9.85:1 |
Values
| HEX | #2D4560 |
| RGB | rgb(45, 69, 96) |
| HSL | hsl(212, 36%, 28%) |
| OKLCH | oklch(38.3% 0.055 252.2) |
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 #2D4560 | 9.85:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #2D4560 | 2.13:1 | Fails | Lc 11.2 | Not readable |
| #2D4560 text on white | 9.85:1 | AAA | Lc 92.8 | Preferred for body text |
| #2D4560 text on black | 2.13:1 | Fails | Lc -9.7 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CFDAE8
oklch(88.4% 0.023 254.4)
-
Step 300
300
#AEC3DB
oklch(80.9% 0.041 251.8)
-
Step 400
400
#83A4C9
oklch(70.8% 0.066 251.6)
-
Step 500
500
#638DBC
oklch(63.2% 0.085 251.9)
-
Step 600
600
#4A76A8
oklch(55.6% 0.092 252.6)
-
Step 700
700
#3B6390
oklch(49.1% 0.086 252.5)
-
Step 800
800
#315175
oklch(42.7% 0.071 252.4)
-
Step 900
900 (this color)
#2D4560
oklch(38.3% 0.055 252.2)
-
Step 950
950
#1A2837
oklch(27.1% 0.034 250.8)
#2D4560 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) | #3A4661 | 0.018 |
| Deuteranopia (no green cones) | #34415F | 0.014 |
| Tritanopia (no blue cones) | #154B4E | 0.048 |
| Achromatopsia (no color) | #434343 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4560
#2D4560
oklch(38.3% 0.055 252.2)
- #553E20
#553E20
oklch(38.2% 0.055 72.2)
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 #2D4560, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.011
- Charcoal #264653 ΔE 0.026
- Dark Blue Grey #1F3B4D ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.052
- Twilight Blue #0A437A ΔE 0.053
- Dark Teal #014D4E ΔE 0.057
- Onyx #343A40 ΔE 0.057
Use #2D4560 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.