#2A4FB2
Closest named color: Blue Blue (#2242C7). oklch(46.1% 0.163 265), rgb(42, 79, 178).
Aa
White text reads best on this color (7.34:1).
About this color
#2A4FB2 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.163 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.046 away. White text reads best on it, at 7.34:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.85:1 |
| White text | 7.34:1 |
Values
| HEX | #2A4FB2 |
| RGB | rgb(42, 79, 178) |
| HSL | hsl(224, 62%, 43%) |
| OKLCH | oklch(46.1% 0.163 265) |
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 #2A4FB2 | 7.34:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #2A4FB2 | 2.85:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #2A4FB2 text on white | 7.34:1 | AAA | Lc 85.0 | Fine for body text |
| #2A4FB2 text on black | 2.85:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F7
oklch(88.4% 0.044 265.6)
-
Step 300
300
#A8C0F5
oklch(80.9% 0.08 265.7)
-
Step 400
400
#7A9EF0
oklch(70.7% 0.127 265.3)
-
Step 500
500
#5984EA
oklch(63.2% 0.161 265)
-
Step 600
600
#3F6BD9
oklch(55.7% 0.176 264.8)
-
Step 700
700 (this color)
#2A4FB2
oklch(46.1% 0.163 265)
-
Step 800
800
#294998
oklch(42.8% 0.135 264.7)
-
Step 900
900
#253E79
oklch(37.8% 0.105 264.6)
-
Step 950
950
#162547
oklch(27.1% 0.066 264.5)
#2A4FB2 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) | #005DB5 | 0.038 |
| Deuteranopia (no green cones) | #0050B0 | 0.023 |
| Tritanopia (no blue cones) | #006778 | 0.129 |
| Achromatopsia (no color) | #565656 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A4FB2
#2A4FB2
oklch(46.1% 0.163 265)
- #705300
#705300
oklch(46% 0.094 85.1)
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 #2A4FB2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.046
- Sapphire #2138AB ΔE 0.059
- Cobalt #1E488F ΔE 0.061
- Blueberry #464196 ΔE 0.061
- Dusk Blue #26538D ΔE 0.063
- Majorelle Blue #3F37C9 ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.068
- Blue With A Hint Of Purple #533CC6 ΔE 0.070
Use #2A4FB2 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.