#7578EF
Closest named color: Cornflower (#6A79F7). oklch(62.9% 0.175 279), rgb(117, 120, 239).
Aa
Black text reads best on this color (5.68:1).
About this color
#7578EF is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.175 and its hue 279°. 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 5.68:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.68:1 |
| White text | 3.69:1 |
Values
| HEX | #7578EF |
| RGB | rgb(117, 120, 239) |
| HSL | hsl(239, 79%, 70%) |
| OKLCH | oklch(62.9% 0.175 279) |
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 #7578EF | 3.69:1 | AA large text | Lc -69.7 | Content text, not long reading |
| Black text on #7578EF | 5.68:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #7578EF text on white | 3.69:1 | AA large text | Lc 64.2 | Content text, not long reading |
| #7578EF text on black | 5.68:1 | AA | Lc -37.4 | 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
#D2D7F9
oklch(88.6% 0.047 278.8)
-
Step 300
300
#B4BBF8
oklch(80.8% 0.086 279.2)
-
Step 400
400
#8F96F4
oklch(70.7% 0.137 279)
-
Step 500
500 (this color)
#7578EF
oklch(62.9% 0.175 279)
-
Step 600
600
#605EDE
oklch(55.5% 0.19 278.9)
-
Step 700
700
#504DC1
oklch(49.1% 0.176 278.9)
-
Step 800
800
#41409C
oklch(42.7% 0.146 278.7)
-
Step 900
900
#37377C
oklch(37.7% 0.114 279.4)
-
Step 950
950
#202149
oklch(27.1% 0.073 279.3)
#7578EF 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) | #3E8AF3 | 0.067 |
| Deuteranopia (no green cones) | #3180EC | 0.069 |
| Tritanopia (no blue cones) | #4292A8 | 0.152 |
| Achromatopsia (no color) | #858585 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7578EF
#7578EF
oklch(62.9% 0.175 279)
- #9D8900
#9D8900
oklch(62.9% 0.13 98.9)
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 #7578EF, closest first.
No curated palette has a color within ΔE 0.04 of #7578EF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.018
- Medium Slate Blue #7B68EE ΔE 0.037
- Soft Blue #6488EA ΔE 0.045
- Periwinkle #8E82FE ΔE 0.050
- Lavender Blue #8B88F8 ΔE 0.054
- Medium Purple #9370DB ΔE 0.054
- Perrywinkle #8F8CE7 ΔE 0.068
- Cornflower Blue #6495ED ΔE 0.075
Use #7578EF 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.