#2E4366
Closest named color: Dark Grey Blue (#29465B). oklch(38.2% 0.066 260.2), rgb(46, 67, 102).
Aa
White text reads best on this color (9.94:1).
About this color
#2E4366 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.066 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.025 away. White text reads best on it, at 9.94:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.11:1 |
| White text | 9.94:1 |
Values
| HEX | #2E4366 |
| RGB | rgb(46, 67, 102) |
| HSL | hsl(218, 38%, 29%) |
| OKLCH | oklch(38.2% 0.066 260.2) |
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 #2E4366 | 9.94:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #2E4366 | 2.11:1 | Fails | Lc 10.9 | Not readable |
| #2E4366 text on white | 9.94:1 | AAA | Lc 93.0 | Preferred for body text |
| #2E4366 text on black | 2.11:1 | Fails | Lc -9.5 | 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
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CFDAEC
oklch(88.5% 0.028 260.3)
-
Step 300
300
#AEC2E1
oklch(80.9% 0.049 259.1)
-
Step 400
400
#84A2D2
oklch(70.8% 0.078 259.7)
-
Step 500
500
#658AC6
oklch(63.1% 0.1 259.8)
-
Step 600
600
#4C73B3
oklch(55.6% 0.109 259.9)
-
Step 700
700
#3D609A
oklch(49.1% 0.102 260)
-
Step 800
800
#334F7D
oklch(42.8% 0.084 259.9)
-
Step 900
900 (this color)
#2E4366
oklch(38.2% 0.066 260.2)
-
Step 950
950
#1A273B
oklch(27.1% 0.042 258.8)
#2E4366 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) | #354667 | 0.014 |
| Deuteranopia (no green cones) | #2F4065 | 0.009 |
| Tritanopia (no blue cones) | #124B50 | 0.059 |
| Achromatopsia (no color) | #434343 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E4366
#2E4366
oklch(38.2% 0.066 260.2)
- #553F14
#553F14
oklch(38.3% 0.066 81)
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 #2E4366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.025
- Charcoal #264653 ΔE 0.039
- Twilight Blue #0A437A ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.055
- Marine Blue #01386A ΔE 0.057
- Light Navy #155084 ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.063
Use #2E4366 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.