#7583DD
Closest named color: Soft Blue (#6488EA). oklch(63.9% 0.135 275.2), rgb(117, 131, 221).
Aa
Black text reads best on this color (6.04:1).
About this color
#7583DD is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.135 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.028 away. Black text reads best on it, at 6.04:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #7583DD |
| RGB | rgb(117, 131, 221) |
| HSL | hsl(232, 60%, 66%) |
| OKLCH | oklch(63.9% 0.135 275.2) |
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 #7583DD | 3.47:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #7583DD | 6.04:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #7583DD text on white | 3.47:1 | AA large text | Lc 62.1 | Content text, not long reading |
| #7583DD text on black | 6.04:1 | AA | Lc -39.5 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D8F2
oklch(88.6% 0.036 275.3)
-
Step 300
300
#B4BEEC
oklch(80.9% 0.066 275.3)
-
Step 400
400
#8E9BE3
oklch(70.8% 0.106 275.5)
-
Step 500
500 (this color)
#7583DD
oklch(63.9% 0.135 275.2)
-
Step 600
600
#5C68C8
oklch(55.6% 0.148 275.2)
-
Step 700
700
#4C56AD
oklch(49.1% 0.137 275.2)
-
Step 800
800
#3E478C
oklch(42.7% 0.113 274.9)
-
Step 900
900
#353C70
oklch(37.7% 0.089 275.5)
-
Step 950
950
#1F2441
oklch(27.1% 0.054 274.8)
#7583DD 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) | #608EE0 | 0.035 |
| Deuteranopia (no green cones) | #5786DB | 0.036 |
| Tritanopia (no blue cones) | #4E96A5 | 0.121 |
| Achromatopsia (no color) | #8A8A8A | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7583DD
#7583DD
oklch(63.9% 0.135 275.2)
- #A58A00
#A58A00
oklch(63.9% 0.131 95.1)
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 #7583DD, closest first.
No curated palette has a color within ΔE 0.04 of #7583DD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.028
- Perrywinkle #8F8CE7 ΔE 0.047
- Cornflower Blue #6495ED ΔE 0.049
- Lavender Blue #8B88F8 ΔE 0.052
- Cornflower #6A79F7 ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.054
- Medium Purple #9370DB ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.062
Use #7583DD 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.