#2D4164
Closest named color: Dark Grey Blue (#29465B). oklch(37.6% 0.066 261.1), rgb(45, 65, 100).
Aa
White text reads best on this color (10.23:1).
About this color
#2D4164 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.066 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.026 away. White text reads best on it, at 10.23:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.05:1 |
| White text | 10.23:1 |
Values
| HEX | #2D4164 |
| RGB | rgb(45, 65, 100) |
| HSL | hsl(218, 38%, 28%) |
| OKLCH | oklch(37.6% 0.066 261.1) |
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 #2D4164 | 10.23:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #2D4164 | 2.05:1 | Fails | Lc 10.3 | Not readable |
| #2D4164 text on white | 10.23:1 | AAA | Lc 93.7 | Preferred for body text |
| #2D4164 text on black | 2.05:1 | Fails | Lc -8.9 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#CFDAEC
oklch(88.5% 0.028 260.3)
-
Step 300
300
#AFC2E1
oklch(81% 0.049 260.2)
-
Step 400
400
#85A1D2
oklch(70.6% 0.079 261.4)
-
Step 500
500
#6689C6
oklch(62.9% 0.101 261.1)
-
Step 600
600
#4E72B3
oklch(55.5% 0.11 261.5)
-
Step 700
700
#3F609A
oklch(49.2% 0.101 261)
-
Step 800
800
#344E7D
oklch(42.6% 0.085 261.5)
-
Step 900
900 (this color)
#2D4164
oklch(37.6% 0.066 261.1)
-
Step 950
950
#1B263B
oklch(26.9% 0.042 262.7)
#2D4164 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) | #334465 | 0.013 |
| Deuteranopia (no green cones) | #2D3F63 | 0.006 |
| Tritanopia (no blue cones) | #12494E | 0.059 |
| Achromatopsia (no color) | #414141 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4164
#2D4164
oklch(37.6% 0.066 261.1)
- #533D12
#533D12
oklch(37.5% 0.066 80.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #2D4164, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.026
- Charcoal #264653 ΔE 0.039
- Twilight Blue #0A437A ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.048
- Marine Blue #01386A ΔE 0.052
- Midnight Green #073B4C ΔE 0.060
- Onyx #343A40 ΔE 0.061
Use #2D4164 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.