#2B4482
Closest named color: Cobalt (#1E488F). oklch(40.1% 0.109 265.3), rgb(43, 68, 130).
Aa
White text reads best on this color (9.32:1).
About this color
#2B4482 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.109 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.025 away. White text reads best on it, at 9.32:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.25:1 |
| White text | 9.32:1 |
Values
| HEX | #2B4482 |
| RGB | rgb(43, 68, 130) |
| HSL | hsl(223, 50%, 34%) |
| OKLCH | oklch(40.1% 0.109 265.3) |
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 #2B4482 | 9.32:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #2B4482 | 2.25:1 | Fails | Lc 12.7 | Not readable |
| #2B4482 text on white | 9.32:1 | AAA | Lc 91.3 | Preferred for body text |
| #2B4482 text on black | 2.25:1 | Fails | Lc -11.1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300
#A7C0F6
oklch(80.8% 0.082 265.3)
-
Step 400
400
#799EF2
oklch(70.8% 0.13 265.2)
-
Step 500
500
#5883ED
oklch(63.1% 0.166 265.3)
-
Step 600
600
#3F6ADC
oklch(55.7% 0.181 265.3)
-
Step 700
700
#3157BF
oklch(49.1% 0.169 265.4)
-
Step 800
800
#29489A
oklch(42.7% 0.139 265.3)
-
Step 900
900 (this color)
#2B4482
oklch(40.1% 0.109 265.3)
-
Step 950
950
#162448
oklch(26.9% 0.07 265.9)
#2B4482 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) | #254B84 | 0.020 |
| Deuteranopia (no green cones) | #154381 | 0.021 |
| Tritanopia (no blue cones) | #00525C | 0.091 |
| Achromatopsia (no color) | #474747 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4482
#2B4482
oklch(40.1% 0.109 265.3)
- #5C4400
#5C4400
oklch(40.2% 0.082 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 #2B4482, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.025
- Twilight Blue #0A437A ΔE 0.031
- Light Navy #155084 ΔE 0.036
- Dusk Blue #26538D ΔE 0.044
- Dark Slate Blue #483D8B ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.050
- Blueberry #464196 ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.065
Use #2B4482 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.