#4740E0
Closest named color: Purpley Blue (#5F34E7). oklch(49.2% 0.232 275.6), rgb(71, 64, 224).
Aa
White text reads best on this color (6.82:1).
About this color
#4740E0 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.232 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Purpley Blue (#5F34E7), ΔE 0.040 away. White text reads best on it, at 6.82:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.232) |
| Temperature | cool |
| Nearest name | Purpley Blue (#5F34E7) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #4740E0 |
| RGB | rgb(71, 64, 224) |
| HSL | hsl(243, 72%, 56%) |
| OKLCH | oklch(49.2% 0.232 275.6) |
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 #4740E0 | 6.82:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #4740E0 | 3.07:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #4740E0 text on white | 6.82:1 | AA | Lc 82.6 | Fine for body text |
| #4740E0 text on black | 3.07:1 | AA large text | Lc -19.3 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E4E9FF
oklch(93.7% 0.03 275.6)
-
Step 200
200
#CED7FF
oklch(88.5% 0.056 275.2)
-
Step 300
300
#AFBCFF
oklch(80.9% 0.096 275.6)
-
Step 400
400
#8796FF
oklch(70.7% 0.154 275.6)
-
Step 500
500
#6C77FF
oklch(63.2% 0.199 275.6)
-
Step 600
600
#5552FF
oklch(55.6% 0.247 275.5)
-
Step 700
700 (this color)
#4740E0
oklch(49.2% 0.232 275.6)
-
Step 800
800
#3936B5
oklch(42.7% 0.193 275.5)
-
Step 900
900
#30328F
oklch(37.8% 0.15 275.6)
-
Step 950
950
#1B1E53
oklch(26.8% 0.095 275.5)
#4740E0 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) | #0062E5 | 0.077 |
| Deuteranopia (no green cones) | #0053DD | 0.057 |
| Tritanopia (no blue cones) | #006D8C | 0.185 |
| Achromatopsia (no color) | #5B5B5B | 0.233 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4740E0
#4740E0
oklch(49.2% 0.232 275.6)
- #736000
#736000
oklch(49.3% 0.101 95.5)
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 #4740E0, closest first.
No curated palette has a color within ΔE 0.04 of #4740E0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purpley Blue #5F34E7 ΔE 0.040
- Blurple #5539CC ΔE 0.040
- Majorelle Blue #3F37C9 ΔE 0.044
- Blue With A Hint Of Purple #533CC6 ΔE 0.046
- Warm Blue #4B57DB ΔE 0.048
- Burple #6832E3 ΔE 0.055
- Light Royal Blue #3A2EFE ΔE 0.055
- Blue Blue #2242C7 ΔE 0.058
Use #4740E0 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.