#2B53A4
Closest named color: Dusk Blue (#26538D). oklch(45.9% 0.139 262.5), rgb(43, 83, 164).
Aa
White text reads best on this color (7.30:1).
About this color
#2B53A4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.139 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.038 away. White text reads best on it, at 7.30:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #2B53A4 |
| RGB | rgb(43, 83, 164) |
| HSL | hsl(220, 58%, 41%) |
| OKLCH | oklch(45.9% 0.139 262.5) |
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 #2B53A4 | 7.30:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #2B53A4 | 2.87:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #2B53A4 text on white | 7.30:1 | AAA | Lc 85.0 | Fine for body text |
| #2B53A4 text on black | 2.87:1 | Fails | Lc -17.0 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CCDAF3
oklch(88.6% 0.038 262.1)
-
Step 300
300
#AAC1ED
oklch(80.9% 0.067 263.3)
-
Step 400
400
#7CA0E4
oklch(70.7% 0.108 262.5)
-
Step 500
500
#5B87DC
oklch(63.1% 0.137 262.4)
-
Step 600
600
#426FCA
oklch(55.6% 0.15 262.7)
-
Step 700
700 (this color)
#2B53A4
oklch(45.9% 0.139 262.5)
-
Step 800
800
#2B4C8D
oklch(42.7% 0.115 262.4)
-
Step 900
900
#274071
oklch(37.8% 0.09 262.5)
-
Step 950
950
#172642
oklch(27.1% 0.056 262)
#2B53A4 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) | #255CA7 | 0.024 |
| Deuteranopia (no green cones) | #0051A2 | 0.026 |
| Tritanopia (no blue cones) | #006673 | 0.110 |
| Achromatopsia (no color) | #565656 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B53A4
#2B53A4
oklch(45.9% 0.139 262.5)
- #725200
#725200
oklch(46.1% 0.095 82.4)
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 #2B53A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.044
- Cobalt #1E488F ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.053
- Blueberry #464196 ΔE 0.055
- Twilight #4E518B ΔE 0.057
- Light Navy #155084 ΔE 0.057
- Dusky Blue #475F94 ΔE 0.058
Use #2B53A4 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.