#3A4DC5
Closest named color: Blue Blue (#2242C7). oklch(48.1% 0.187 270.7), rgb(58, 77, 197).
Aa
White text reads best on this color (6.89:1).
About this color
#3A4DC5 is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.187 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.038 away. White text reads best on it, at 6.89:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.187) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.04:1 |
| White text | 6.89:1 |
Values
| HEX | #3A4DC5 |
| RGB | rgb(58, 77, 197) |
| HSL | hsl(232, 55%, 50%) |
| OKLCH | oklch(48.1% 0.187 270.7) |
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 #3A4DC5 | 6.89:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #3A4DC5 | 3.04:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #3A4DC5 text on white | 6.89:1 | AA | Lc 83.3 | Fine for body text |
| #3A4DC5 text on black | 3.04:1 | AA large text | Lc -18.7 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FC
oklch(93.5% 0.027 271.9)
-
Step 200
200
#CCD8FB
oklch(88.4% 0.05 270.4)
-
Step 300
300
#AABEFC
oklch(80.9% 0.091 270.5)
-
Step 400
400
#7F9AFA
oklch(70.7% 0.144 270.5)
-
Step 500
500
#617DF8
oklch(63.1% 0.185 270.6)
-
Step 600
600
#4B62E7
oklch(55.6% 0.202 270.9)
-
Step 700
700 (this color)
#3A4DC5
oklch(48.1% 0.187 270.7)
-
Step 800
800
#3243A2
oklch(42.8% 0.154 270.7)
-
Step 900
900
#2B3A81
oklch(37.8% 0.121 270.6)
-
Step 950
950
#19224B
oklch(26.9% 0.077 271.1)
#3A4DC5 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) | #0061C9 | 0.053 |
| Deuteranopia (no green cones) | #0054C3 | 0.037 |
| Tritanopia (no blue cones) | #006B81 | 0.150 |
| Achromatopsia (no color) | #5A5A5A | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A4DC5
#3A4DC5
oklch(48.1% 0.187 270.7)
- #735B00
#735B00
oklch(48.2% 0.098 90.8)
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 #3A4DC5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.038
- Majorelle Blue #3F37C9 ΔE 0.044
- Blue With A Hint Of Purple #533CC6 ΔE 0.046
- Warm Blue #4B57DB ΔE 0.048
- Blurple #5539CC ΔE 0.052
- Bluey Purple #6241C7 ΔE 0.060
- Iris #6258C4 ΔE 0.065
- Azul #1D5DEC ΔE 0.071
Use #3A4DC5 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.