#3628CA
Closest named color: Majorelle Blue (#3F37C9). oklch(42.8% 0.232 274.2), rgb(54, 40, 202).
Aa
White text reads best on this color (9.07:1).
About this color
#3628CA is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.232 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Majorelle Blue (#3F37C9), ΔE 0.030 away. White text reads best on it, at 9.07:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.232) |
| Temperature | cool |
| Nearest name | Majorelle Blue (#3F37C9) |
| Black text | 2.31:1 |
| White text | 9.07:1 |
Values
| HEX | #3628CA |
| RGB | rgb(54, 40, 202) |
| HSL | hsl(245, 67%, 47%) |
| OKLCH | oklch(42.8% 0.232 274.2) |
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 #3628CA | 9.07:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #3628CA | 2.31:1 | Fails | Lc 14.5 | Not readable |
| #3628CA text on white | 9.07:1 | AAA | Lc 89.5 | Fine for body text |
| #3628CA text on black | 2.31:1 | Fails | Lc -12.7 | Not readable |
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 800.
-
Step 50
50
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E3E9FF
oklch(93.6% 0.03 273.6)
-
Step 200
200
#CDD7FF
oklch(88.4% 0.056 274.2)
-
Step 300
300
#ADBCFF
oklch(80.8% 0.096 274.3)
-
Step 400
400
#8497FF
oklch(70.7% 0.153 274)
-
Step 500
500
#6878FF
oklch(63.1% 0.199 274.1)
-
Step 600
600
#5154FF
oklch(55.6% 0.246 274.2)
-
Step 700
700
#4329FA
oklch(49% 0.28 274.2)
-
Step 800
800 (this color)
#3628CA
oklch(42.8% 0.232 274.2)
-
Step 900
900
#2C2A9E
oklch(37.7% 0.18 274.2)
-
Step 950
950
#191B5D
oklch(27.1% 0.115 274.3)
#3628CA 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) | #0050CE | 0.076 |
| Deuteranopia (no green cones) | #0041C7 | 0.051 |
| Tritanopia (no blue cones) | #005B7A | 0.180 |
| Achromatopsia (no color) | #484848 | 0.233 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3628CA
#3628CA
oklch(42.8% 0.232 274.2)
- #5F4E00
#5F4E00
oklch(42.9% 0.088 94.5)
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 #3628CA, closest first.
No curated palette has a color within ΔE 0.04 of #3628CA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Majorelle Blue #3F37C9 ΔE 0.030
- Blue Blue #2242C7 ΔE 0.045
- Indigo Blue #3A18B1 ΔE 0.049
- Violet Blue #510AC9 ΔE 0.050
- Ultramarine Blue #1805DB ΔE 0.056
- Sapphire #2138AB ΔE 0.057
- Blurple #5539CC ΔE 0.061
- Blue With A Hint Of Purple #533CC6 ΔE 0.062
Use #3628CA 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.