#3C50BB
Closest named color: Blue Blue (#2242C7). oklch(47.9% 0.169 270.6), rgb(60, 80, 187).
Aa
White text reads best on this color (6.86:1).
About this color
#3C50BB is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.169 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.049 away. White text reads best on it, at 6.86:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.05:1 |
| White text | 6.86:1 |
Values
| HEX | #3C50BB |
| RGB | rgb(60, 80, 187) |
| HSL | hsl(231, 51%, 48%) |
| OKLCH | oklch(47.9% 0.169 270.6) |
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 #3C50BB | 6.86:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #3C50BB | 3.05:1 | AA large text | Lc 20.7 | Dividers and decoration only |
| #3C50BB text on white | 6.86:1 | AA | Lc 83.3 | Fine for body text |
| #3C50BB text on black | 3.05:1 | AA large text | Lc -18.6 | 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
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CDD8F8
oklch(88.4% 0.046 270.4)
-
Step 300
300
#ACBEF6
oklch(80.8% 0.082 270.7)
-
Step 400
400
#829BF2
oklch(70.7% 0.131 270.6)
-
Step 500
500
#647FEE
oklch(63% 0.169 270.6)
-
Step 600
600
#4D66DC
oklch(55.6% 0.182 270.4)
-
Step 700
700 (this color)
#3C50BB
oklch(47.9% 0.169 270.6)
-
Step 800
800
#34459A
oklch(42.7% 0.14 270.8)
-
Step 900
900
#2D3B7B
oklch(37.7% 0.11 271)
-
Step 950
950
#1A2348
oklch(27% 0.07 270.8)
#3C50BB 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) | #0060BF | 0.048 |
| Deuteranopia (no green cones) | #0055B9 | 0.039 |
| Tritanopia (no blue cones) | #006A7D | 0.139 |
| Achromatopsia (no color) | #5A5A5A | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C50BB
#3C50BB
oklch(47.9% 0.169 270.6)
- #725A00
#725A00
oklch(47.8% 0.098 90.6)
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 #3C50BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.049
- Blue With A Hint Of Purple #533CC6 ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.056
- Warm Blue #4B57DB ΔE 0.057
- Blurple #5539CC ΔE 0.061
- Iris #6258C4 ΔE 0.061
- Bluey Purple #6241C7 ΔE 0.064
- Blueberry #464196 ΔE 0.068
Use #3C50BB 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.