#2B53BF
Closest named color: Blue Blue (#2242C7). oklch(48% 0.176 265), rgb(43, 83, 191).
Aa
White text reads best on this color (6.79:1).
About this color
#2B53BF is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.176 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.043 away. White text reads best on it, at 6.79:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.09:1 |
| White text | 6.79:1 |
Values
| HEX | #2B53BF |
| RGB | rgb(43, 83, 191) |
| HSL | hsl(224, 63%, 46%) |
| OKLCH | oklch(48% 0.176 265) |
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 #2B53BF | 6.79:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #2B53BF | 3.09:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #2B53BF text on white | 6.79:1 | AA | Lc 82.9 | Fine for body text |
| #2B53BF text on black | 3.09:1 | AA large text | Lc -19.0 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
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
#A6C0F8
oklch(80.8% 0.085 265.2)
-
Step 400
400
#779EF5
oklch(70.8% 0.135 264.9)
-
Step 500
500
#5582F1
oklch(63% 0.174 265.2)
-
Step 600
600
#3B69E0
oklch(55.7% 0.189 264.9)
-
Step 700
700 (this color)
#2B53BF
oklch(48% 0.176 265)
-
Step 800
800
#26479D
oklch(42.6% 0.146 264.9)
-
Step 900
900
#233D7D
oklch(37.7% 0.113 264.9)
-
Step 950
950
#152449
oklch(27% 0.072 265.3)
#2B53BF 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) | #0062C3 | 0.039 |
| Deuteranopia (no green cones) | #0054BD | 0.022 |
| Tritanopia (no blue cones) | #006E81 | 0.138 |
| Achromatopsia (no color) | #5B5B5B | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B53BF
#2B53BF
oklch(48% 0.176 265)
- #775800
#775800
oklch(48% 0.098 84.7)
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 #2B53BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.043
- Warm Blue #4B57DB ΔE 0.059
- Majorelle Blue #3F37C9 ΔE 0.061
- Blue With A Hint Of Purple #533CC6 ΔE 0.066
- Mid Blue #276AB3 ΔE 0.066
- Blurple #5539CC ΔE 0.073
- Azul #1D5DEC ΔE 0.073
- Iris #6258C4 ΔE 0.073
Use #2B53BF 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.