#7581FB
Closest named color: Cornflower (#6A79F7). oklch(65.3% 0.179 276), rgb(117, 129, 251).
Aa
Black text reads best on this color (6.28:1).
About this color
#7581FB is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.179 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.026 away. Black text reads best on it, at 6.28:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 6.28:1 |
| White text | 3.33:1 |
Values
| HEX | #7581FB |
| RGB | rgb(117, 129, 251) |
| HSL | hsl(235, 94%, 72%) |
| OKLCH | oklch(65.3% 0.179 276) |
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 #7581FB | 3.33:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #7581FB | 6.28:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #7581FB text on white | 3.33:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #7581FB text on black | 6.28:1 | AA | Lc -41.1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D0D7FA
oklch(88.5% 0.049 276.4)
-
Step 300
300
#B1BCFA
oklch(80.9% 0.089 276.4)
-
Step 400
400
#8997F7
oklch(70.6% 0.141 275.9)
-
Step 500
500 (this color)
#7581FB
oklch(65.3% 0.179 276)
-
Step 600
600
#595FE2
oklch(55.5% 0.195 276)
-
Step 700
700
#4A4EC4
oklch(49.1% 0.18 276)
-
Step 800
800
#3C419F
oklch(42.8% 0.15 275.8)
-
Step 900
900
#33387E
oklch(37.7% 0.117 276.2)
-
Step 950
950
#1D214A
oklch(26.9% 0.075 275.9)
#7581FB 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) | #4692FF | 0.058 |
| Deuteranopia (no green cones) | #3487F8 | 0.063 |
| Tritanopia (no blue cones) | #349CB2 | 0.158 |
| Achromatopsia (no color) | #8D8D8D | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7581FB
#7581FB
oklch(65.3% 0.179 276)
- #A98F00
#A98F00
oklch(65.4% 0.135 96.1)
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 #7581FB, closest first.
No curated palette has a color within ΔE 0.04 of #7581FB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.026
- Periwinkle #8E82FE ΔE 0.035
- Lavender Blue #8B88F8 ΔE 0.037
- Soft Blue #6488EA ΔE 0.038
- Perrywinkle #8F8CE7 ΔE 0.058
- Medium Slate Blue #7B68EE ΔE 0.059
- Cornflower Blue #6495ED ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.069
Use #7581FB 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.