#2E4D9B
Closest named color: Cobalt (#1E488F). oklch(44.1% 0.133 265.1), rgb(46, 77, 155).
Aa
White text reads best on this color (7.92:1).
About this color
#2E4D9B is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.133 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.030 away. White text reads best on it, at 7.92:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.65:1 |
| White text | 7.92:1 |
Values
| HEX | #2E4D9B |
| RGB | rgb(46, 77, 155) |
| HSL | hsl(223, 54%, 39%) |
| OKLCH | oklch(44.1% 0.133 265.1) |
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 #2E4D9B | 7.92:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #2E4D9B | 2.65:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #2E4D9B text on white | 7.92:1 | AAA | Lc 87.1 | Fine for body text |
| #2E4D9B text on black | 2.65:1 | Fails | Lc -15.0 | 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 800.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CBD9F7
oklch(88.4% 0.044 265.6)
-
Step 300
300
#A8C0F4
oklch(80.8% 0.079 265.4)
-
Step 400
400
#7B9EEE
oklch(70.7% 0.124 265.4)
-
Step 500
500
#5A84E8
oklch(63.1% 0.158 265.1)
-
Step 600
600
#416BD7
oklch(55.7% 0.172 265.2)
-
Step 700
700
#3359BA
oklch(49.2% 0.159 265)
-
Step 800
800 (this color)
#2E4D9B
oklch(44.1% 0.133 265.1)
-
Step 900
900
#263E78
oklch(37.7% 0.103 265)
-
Step 950
950
#162546
oklch(27.1% 0.065 264.1)
#2E4D9B 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) | #21569E | 0.025 |
| Deuteranopia (no green cones) | #004C99 | 0.030 |
| Tritanopia (no blue cones) | #005F6C | 0.108 |
| Achromatopsia (no color) | #515151 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E4D9B
#2E4D9B
oklch(44.1% 0.133 265.1)
- #694E00
#694E00
oklch(44.1% 0.09 85.6)
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 #2E4D9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.030
- Dusk Blue #26538D ΔE 0.031
- Blueberry #464196 ΔE 0.041
- Light Navy #155084 ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.049
- Twilight #4E518B ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.054
Use #2E4D9B 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.