#2E405F
Closest named color: Dark Grey Blue (#29465B). oklch(37.1% 0.059 260.9), rgb(46, 64, 95).
Aa
White text reads best on this color (10.42:1).
About this color
#2E405F is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.059 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.023 away. White text reads best on it, at 10.42:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.01:1 |
| White text | 10.42:1 |
Values
| HEX | #2E405F |
| RGB | rgb(46, 64, 95) |
| HSL | hsl(218, 35%, 28%) |
| OKLCH | oklch(37.1% 0.059 260.9) |
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 #2E405F | 10.42:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #2E405F | 2.01:1 | Fails | Lc 9.8 | Not readable |
| #2E405F text on white | 10.42:1 | AAA | Lc 94.1 | Preferred for body text |
| #2E405F text on black | 2.01:1 | Fails | Lc -8.4 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
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
#B1C2DE
oklch(81% 0.044 260.4)
-
Step 400
400
#88A1CD
oklch(70.6% 0.071 261.6)
-
Step 500
500
#6A8AC0
oklch(63.1% 0.09 260.6)
-
Step 600
600
#5273AC
oklch(55.6% 0.097 260.9)
-
Step 700
700
#426094
oklch(49% 0.091 260.9)
-
Step 800
800
#374F78
oklch(42.8% 0.075 260.7)
-
Step 900
900 (this color)
#2E405F
oklch(37.1% 0.059 260.9)
-
Step 950
950
#1C2739
oklch(27.1% 0.037 260)
#2E405F 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) | #344260 | 0.011 |
| Deuteranopia (no green cones) | #2F3E5E | 0.006 |
| Tritanopia (no blue cones) | #19474B | 0.053 |
| Achromatopsia (no color) | #404040 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E405F
#2E405F
oklch(37.1% 0.059 260.9)
- #503C18
#503C18
oklch(37% 0.059 79.9)
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 #2E405F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.023
- Charcoal #264653 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.044
- Twilight Blue #0A437A ΔE 0.052
- Onyx #343A40 ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.054
- Marine Blue #01386A ΔE 0.055
Use #2E405F 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.