#2B52BB
Closest named color: Blue Blue (#2242C7). oklch(47.5% 0.172 265), rgb(43, 82, 187).
Aa
White text reads best on this color (6.93:1).
About this color
#2B52BB is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.172 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.044 away. White text reads best on it, at 6.93:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.02:1 |
| White text | 6.93:1 |
Values
| HEX | #2B52BB |
| RGB | rgb(43, 82, 187) |
| HSL | hsl(224, 63%, 45%) |
| OKLCH | oklch(47.5% 0.172 265) |
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 #2B52BB | 6.93:1 | AA | Lc -88.5 | Fine for body text |
| Black text on #2B52BB | 3.02:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #2B52BB text on white | 6.93:1 | AA | Lc 83.5 | Fine for body text |
| #2B52BB text on black | 3.02:1 | AA large text | Lc -18.5 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CAD9F9
oklch(88.4% 0.047 265.5)
-
Step 300
300
#A6C0F7
oklch(80.8% 0.083 264.9)
-
Step 400
400
#789EF3
oklch(70.8% 0.132 264.9)
-
Step 500
500
#5683EF
oklch(63.2% 0.169 264.9)
-
Step 600
600
#3C69DE
oklch(55.5% 0.186 265)
-
Step 700
700 (this color)
#2B52BB
oklch(47.5% 0.172 265)
-
Step 800
800
#27489C
oklch(42.8% 0.143 264.8)
-
Step 900
900
#243D7C
oklch(37.7% 0.111 265.2)
-
Step 950
950
#152448
oklch(26.9% 0.07 265)
#2B52BB 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) | #0061BF | 0.039 |
| Deuteranopia (no green cones) | #0053B9 | 0.022 |
| Tritanopia (no blue cones) | #006C7E | 0.135 |
| Achromatopsia (no color) | #5A5A5A | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B52BB
#2B52BB
oklch(47.5% 0.172 265)
- #755700
#755700
oklch(47.5% 0.097 85.3)
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 #2B52BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.044
- Majorelle Blue #3F37C9 ΔE 0.061
- Warm Blue #4B57DB ΔE 0.065
- Blue With A Hint Of Purple #533CC6 ΔE 0.066
- Mid Blue #276AB3 ΔE 0.067
- Sapphire #2138AB ΔE 0.070
- Blurple #5539CC ΔE 0.074
- Blueberry #464196 ΔE 0.074
Use #2B52BB 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.