#7578DD
Closest named color: Cornflower (#6A79F7). oklch(61.7% 0.15 279.8), rgb(117, 120, 221).
Aa
Black text reads best on this color (5.48:1).
About this color
#7578DD is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.150 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.041 away. Black text reads best on it, at 5.48:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.48:1 |
| White text | 3.82:1 |
Values
| HEX | #7578DD |
| RGB | rgb(117, 120, 221) |
| HSL | hsl(238, 60%, 66%) |
| OKLCH | oklch(61.7% 0.15 279.8) |
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 #7578DD | 3.82:1 | AA large text | Lc -71.1 | Content text, not long reading |
| Black text on #7578DD | 5.48:1 | AA | Lc 38.5 | Non-text elements, placeholder text |
| #7578DD text on white | 3.82:1 | AA large text | Lc 65.6 | Content text, not long reading |
| #7578DD text on black | 5.48:1 | AA | Lc -36.1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F8
oklch(93.7% 0.02 279.9)
-
Step 200
200
#D3D7F4
oklch(88.5% 0.04 279.3)
-
Step 300
300
#B6BCF0
oklch(80.8% 0.074 279.5)
-
Step 400
400
#9298E9
oklch(70.7% 0.118 279.7)
-
Step 500
500 (this color)
#7578DD
oklch(61.7% 0.15 279.8)
-
Step 600
600
#6363CF
oklch(55.6% 0.163 279.7)
-
Step 700
700
#5351B4
oklch(49.1% 0.153 280.1)
-
Step 800
800
#434391
oklch(42.6% 0.125 279.7)
-
Step 900
900
#383974
oklch(37.6% 0.099 279.8)
-
Step 950
950
#212244
oklch(27% 0.062 280.1)
#7578DD 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) | #4E86E1 | 0.053 |
| Deuteranopia (no green cones) | #477EDB | 0.054 |
| Tritanopia (no blue cones) | #508DA0 | 0.130 |
| Achromatopsia (no color) | #828282 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7578DD
#7578DD
oklch(61.7% 0.15 279.8)
- #988600
#988600
oklch(61.7% 0.128 99.8)
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 #7578DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.041
- Soft Blue #6488EA ΔE 0.044
- Medium Purple #9370DB ΔE 0.047
- Medium Slate Blue #7B68EE ΔE 0.049
- Lavender Blue #8B88F8 ΔE 0.064
- Periwinkle #8E82FE ΔE 0.065
- Perrywinkle #8F8CE7 ΔE 0.067
- Deep Lilac #966EBD ΔE 0.069
Use #7578DD 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.