#3851C5
Closest named color: Blue Blue (#2242C7). oklch(48.7% 0.183 269.2), rgb(56, 81, 197).
Aa
White text reads best on this color (6.66:1).
About this color
#3851C5 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.183 and its hue 269°. 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 6.66:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.15:1 |
| White text | 6.66:1 |
Values
| HEX | #3851C5 |
| RGB | rgb(56, 81, 197) |
| HSL | hsl(229, 56%, 50%) |
| OKLCH | oklch(48.7% 0.183 269.2) |
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 #3851C5 | 6.66:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #3851C5 | 3.15:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #3851C5 text on white | 6.66:1 | AA | Lc 82.4 | Fine for body text |
| #3851C5 text on black | 3.15:1 | AA large text | Lc -19.5 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFC
oklch(93.7% 0.025 268.8)
-
Step 200
200
#CCD9FB
oklch(88.6% 0.049 268.8)
-
Step 300
300
#A9BFFB
oklch(81% 0.089 268.8)
-
Step 400
400
#7D9BF9
oklch(70.8% 0.142 269.2)
-
Step 500
500
#5E7FF5
oklch(63.2% 0.18 269)
-
Step 600
600
#4764E4
oklch(55.5% 0.197 269.3)
-
Step 700
700 (this color)
#3851C5
oklch(48.7% 0.183 269.2)
-
Step 800
800
#2F44A0
oklch(42.7% 0.151 269.3)
-
Step 900
900
#293B7F
oklch(37.8% 0.117 269)
-
Step 950
950
#18234A
oklch(27% 0.074 269.2)
#3851C5 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) | #0063C9 | 0.048 |
| Deuteranopia (no green cones) | #0056C3 | 0.034 |
| Tritanopia (no blue cones) | #006E83 | 0.146 |
| Achromatopsia (no color) | #5C5C5C | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3851C5
#3851C5
oklch(48.7% 0.183 269.2)
- #765C00
#765C00
oklch(48.7% 0.1 89.5)
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 #3851C5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.044
- Warm Blue #4B57DB ΔE 0.045
- Blue With A Hint Of Purple #533CC6 ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.053
- Blurple #5539CC ΔE 0.059
- Iris #6258C4 ΔE 0.062
- Bluey Purple #6241C7 ΔE 0.065
- Azul #1D5DEC ΔE 0.067
Use #3851C5 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.