#2E4899
Closest named color: Cobalt (#1E488F). oklch(42.9% 0.136 267.1), rgb(46, 72, 153).
Aa
White text reads best on this color (8.38:1).
About this color
#2E4899 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.136 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.023 away. White text reads best on it, at 8.38:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #2E4899 |
| RGB | rgb(46, 72, 153) |
| HSL | hsl(225, 54%, 39%) |
| OKLCH | oklch(42.9% 0.136 267.1) |
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 #2E4899 | 8.38:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #2E4899 | 2.50:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #2E4899 text on white | 8.38:1 | AAA | Lc 88.6 | Fine for body text |
| #2E4899 text on black | 2.50:1 | Fails | Lc -13.6 | 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
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F7
oklch(88.5% 0.044 266.9)
-
Step 300
300
#AAC0F5
oklch(81% 0.079 267.1)
-
Step 400
400
#7D9DF0
oklch(70.7% 0.127 267.1)
-
Step 500
500
#5D82EB
oklch(63.1% 0.163 267.1)
-
Step 600
600
#4569D9
oklch(55.6% 0.176 267.1)
-
Step 700
700
#3757BC
oklch(49.1% 0.163 266.9)
-
Step 800
800 (this color)
#2E4899
oklch(42.9% 0.136 267.1)
-
Step 900
900
#283D79
oklch(37.7% 0.105 266.8)
-
Step 950
950
#182447
oklch(27% 0.067 267.5)
#2E4899 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) | #14539C | 0.032 |
| Deuteranopia (no green cones) | #004997 | 0.030 |
| Tritanopia (no blue cones) | #005B69 | 0.111 |
| Achromatopsia (no color) | #4D4D4D | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E4899
#2E4899
oklch(42.9% 0.136 267.1)
- #644B00
#644B00
oklch(42.8% 0.087 86.6)
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 #2E4899, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.023
- Blueberry #464196 ΔE 0.035
- Dusk Blue #26538D ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.047
- Light Navy #155084 ΔE 0.048
- Sapphire #2138AB ΔE 0.053
- Twilight #4E518B ΔE 0.058
- Deep Sea Blue #015482 ΔE 0.060
Use #2E4899 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.