#747AEF
Closest named color: Cornflower (#6A79F7). oklch(63.2% 0.172 278), rgb(116, 122, 239).
Aa
Black text reads best on this color (5.77:1).
About this color
#747AEF is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.172 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.018 away. Black text reads best on it, at 5.77:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.77:1 |
| White text | 3.63:1 |
Values
| HEX | #747AEF |
| RGB | rgb(116, 122, 239) |
| HSL | hsl(237, 79%, 70%) |
| OKLCH | oklch(63.2% 0.172 278) |
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 #747AEF | 3.63:1 | AA large text | Lc -69.2 | Content text, not long reading |
| Black text on #747AEF | 5.77:1 | AA | Lc 40.3 | Non-text elements, placeholder text |
| #747AEF text on white | 3.63:1 | AA large text | Lc 63.7 | Content text, not long reading |
| #747AEF text on black | 5.77:1 | AA | Lc -37.9 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D1D7F9
oklch(88.5% 0.047 277.5)
-
Step 300
300
#B3BCF7
oklch(80.9% 0.084 277.6)
-
Step 400
400
#8E97F3
oklch(70.8% 0.134 278.1)
-
Step 500
500 (this color)
#747AEF
oklch(63.2% 0.172 278)
-
Step 600
600
#5E5FDD
oklch(55.5% 0.188 278)
-
Step 700
700
#4E4EC0
oklch(49.1% 0.174 277.9)
-
Step 800
800
#40419B
oklch(42.8% 0.143 278)
-
Step 900
900
#36387B
oklch(37.7% 0.111 278.3)
-
Step 950
950
#1F2148
oklch(26.9% 0.071 278.2)
#747AEF 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) | #428BF3 | 0.062 |
| Deuteranopia (no green cones) | #3481EC | 0.065 |
| Tritanopia (no blue cones) | #3F94A9 | 0.151 |
| Achromatopsia (no color) | #868686 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #747AEF
#747AEF
oklch(63.2% 0.172 278)
- #9F8900
#9F8900
oklch(63.1% 0.13 97.8)
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 #747AEF, closest first.
No curated palette has a color within ΔE 0.04 of #747AEF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.018
- Soft Blue #6488EA ΔE 0.040
- Medium Slate Blue #7B68EE ΔE 0.042
- Periwinkle #8E82FE ΔE 0.048
- Lavender Blue #8B88F8 ΔE 0.051
- Medium Purple #9370DB ΔE 0.056
- Perrywinkle #8F8CE7 ΔE 0.065
- Cornflower Blue #6495ED ΔE 0.070
Use #747AEF 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.