#2D3E5E
Closest named color: Dark Grey Blue (#29465B). oklch(36.5% 0.06 262.4), rgb(45, 62, 94).
Aa
White text reads best on this color (10.70:1).
About this color
#2D3E5E is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.060 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.028 away. White text reads best on it, at 10.70:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.96:1 |
| White text | 10.70:1 |
Values
| HEX | #2D3E5E |
| RGB | rgb(45, 62, 94) |
| HSL | hsl(219, 35%, 27%) |
| OKLCH | oklch(36.5% 0.06 262.4) |
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 #2D3E5E | 10.70:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #2D3E5E | 1.96:1 | Fails | Lc 9.2 | Not readable |
| #2D3E5E text on white | 10.70:1 | AAA | Lc 94.7 | Preferred for body text |
| #2D3E5E text on black | 1.96:1 | Fails | Lc -7.9 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEA
oklch(88.6% 0.025 259.8)
-
Step 300
300
#B1C1DE
oklch(80.8% 0.045 262.4)
-
Step 400
400
#89A1CE
oklch(70.7% 0.072 262.8)
-
Step 500
500
#6B89C1
oklch(63% 0.092 262.4)
-
Step 600
600
#5372AE
oklch(55.5% 0.101 262.7)
-
Step 700
700
#446095
oklch(49.2% 0.092 262.3)
-
Step 800
800
#384E79
oklch(42.6% 0.077 262.9)
-
Step 900
900 (this color)
#2D3E5E
oklch(36.5% 0.06 262.4)
-
Step 950
950
#1C2639
oklch(26.9% 0.038 262.7)
#2D3E5E 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) | #32405F | 0.010 |
| Deuteranopia (no green cones) | #2C3C5D | 0.007 |
| Tritanopia (no blue cones) | #184549 | 0.055 |
| Achromatopsia (no color) | #3E3E3E | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D3E5E
#2D3E5E
oklch(36.5% 0.06 262.4)
- #4E3B15
#4E3B15
oklch(36.5% 0.06 82.1)
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 #2D3E5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.037
- Charcoal #264653 ΔE 0.037
- Prussian Blue #1D3557 ΔE 0.038
- Marine Blue #01386A ΔE 0.051
- Onyx #343A40 ΔE 0.051
- Midnight Green #073B4C ΔE 0.051
- Twilight Blue #0A437A ΔE 0.053
Use #2D3E5E 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.