#3D47BE
Closest named color: Majorelle Blue (#3F37C9). oklch(46.6% 0.184 273.2), rgb(61, 71, 190).
Aa
White text reads best on this color (7.38:1).
About this color
#3D47BE is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.184 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Majorelle Blue (#3F37C9), ΔE 0.035 away. White text reads best on it, at 7.38:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.184) |
| Temperature | cool |
| Nearest name | Majorelle Blue (#3F37C9) |
| Black text | 2.84:1 |
| White text | 7.38:1 |
Values
| HEX | #3D47BE |
| RGB | rgb(61, 71, 190) |
| HSL | hsl(235, 51%, 49%) |
| OKLCH | oklch(46.6% 0.184 273.2) |
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 #3D47BE | 7.38:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #3D47BE | 2.84:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #3D47BE text on white | 7.38:1 | AAA | Lc 85.1 | Fine for body text |
| #3D47BE text on black | 2.84:1 | Fails | Lc -16.9 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CED8FB
oklch(88.6% 0.049 272.8)
-
Step 300
300
#ADBDFB
oklch(80.8% 0.09 273.1)
-
Step 400
400
#8499F9
oklch(70.8% 0.142 272.9)
-
Step 500
500
#687CF6
oklch(63.2% 0.182 273.1)
-
Step 600
600
#5261E4
oklch(55.6% 0.197 273.2)
-
Step 700
700 (this color)
#3D47BE
oklch(46.6% 0.184 273.2)
-
Step 800
800
#3742A1
oklch(42.8% 0.153 273.1)
-
Step 900
900
#2F397F
oklch(37.7% 0.118 273.3)
-
Step 950
950
#1B224B
oklch(27% 0.076 273)
#3D47BE 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) | #005CC2 | 0.057 |
| Deuteranopia (no green cones) | #0050BC | 0.044 |
| Tritanopia (no blue cones) | #00657C | 0.149 |
| Achromatopsia (no color) | #565656 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D47BE
#3D47BE
oklch(46.6% 0.184 273.2)
- #6C5800
#6C5800
oklch(46.7% 0.096 93.5)
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 #3D47BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Majorelle Blue #3F37C9 ΔE 0.035
- Blue Blue #2242C7 ΔE 0.036
- Blue With A Hint Of Purple #533CC6 ΔE 0.038
- Blurple #5539CC ΔE 0.046
- Bluey Purple #6241C7 ΔE 0.058
- Sapphire #2138AB ΔE 0.061
- Warm Blue #4B57DB ΔE 0.063
- Blueberry #464196 ΔE 0.066
Use #3D47BE 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.