#2D3C5E
Closest named color: Dark Grey Blue (#29465B). oklch(36% 0.062 265.3), rgb(45, 60, 94).
Aa
White text reads best on this color (10.94:1).
About this color
#2D3C5E is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.062 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.034 away. White text reads best on it, at 10.94:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.91:1 |
| White text | 10.94:1 |
Values
| HEX | #2D3C5E |
| RGB | rgb(45, 60, 94) |
| HSL | hsl(222, 35%, 27%) |
| OKLCH | oklch(36% 0.062 265.3) |
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 #2D3C5E | 10.94:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #2D3C5E | 1.91:1 | Fails | Lc 8.7 | Not readable |
| #2D3C5E text on white | 10.94:1 | AAA | Lc 95.2 | Preferred for body text |
| #2D3C5E text on black | 1.91:1 | Fails | Lc -7.4 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B2C1E0
oklch(81% 0.047 264.9)
-
Step 400
400
#8AA0D0
oklch(70.7% 0.075 265.4)
-
Step 500
500
#6D88C4
oklch(63.1% 0.096 265.2)
-
Step 600
600
#5571B0
oklch(55.5% 0.104 265)
-
Step 700
700
#465F98
oklch(49.2% 0.097 265.1)
-
Step 800
800
#394D7B
oklch(42.6% 0.081 265.3)
-
Step 900
900 (this color)
#2D3C5E
oklch(36% 0.062 265.3)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#2D3C5E 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) | #2F3F5F | 0.010 |
| Deuteranopia (no green cones) | #2A3B5D | 0.006 |
| Tritanopia (no blue cones) | #194348 | 0.056 |
| Achromatopsia (no color) | #3D3D3D | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D3C5E
#2D3C5E
oklch(36% 0.062 265.3)
- #4C3A10
#4C3A10
oklch(35.9% 0.063 84.9)
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 #2D3C5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.036
- Charcoal #264653 ΔE 0.043
- Marine Blue #01386A ΔE 0.048
- Midnight Green #073B4C ΔE 0.051
- Onyx #343A40 ΔE 0.052
- Twilight Blue #0A437A ΔE 0.054
Use #2D3C5E 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.