#6584FC
Closest named color: Cornflower (#6A79F7). oklch(65% 0.181 269.9), rgb(101, 132, 252).
Aa
Black text reads best on this color (6.25:1).
About this color
#6584FC is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.181 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.027 away. Black text reads best on it, at 6.25:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 6.25:1 |
| White text | 3.35:1 |
Values
| HEX | #6584FC |
| RGB | rgb(101, 132, 252) |
| HSL | hsl(228, 96%, 69%) |
| OKLCH | oklch(65% 0.181 269.9) |
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 #6584FC | 3.35:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #6584FC | 6.25:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #6584FC text on white | 3.35:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #6584FC text on black | 6.25:1 | AA | Lc -41.0 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFC
oklch(93.7% 0.025 268.8)
-
Step 200
200
#CCD8FB
oklch(88.4% 0.05 270.4)
-
Step 300
300
#AABEFB
oklch(80.8% 0.089 270.3)
-
Step 400
400
#7E9AF9
oklch(70.6% 0.143 270)
-
Step 500
500 (this color)
#6584FC
oklch(65% 0.181 269.9)
-
Step 600
600
#4964E4
oklch(55.6% 0.196 269.9)
-
Step 700
700
#3B52C6
oklch(49.1% 0.182 269.8)
-
Step 800
800
#3044A0
oklch(42.7% 0.151 269.6)
-
Step 900
900
#2A3A7F
oklch(37.6% 0.118 270)
-
Step 950
950
#18234B
oklch(27.1% 0.075 269.3)
#6584FC 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) | #4793FF | 0.043 |
| Deuteranopia (no green cones) | #2B86F9 | 0.049 |
| Tritanopia (no blue cones) | #009FB4 | 0.156 |
| Achromatopsia (no color) | #8C8C8C | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6584FC
#6584FC
oklch(65% 0.181 269.9)
- #AF8A00
#AF8A00
oklch(65% 0.133 89.6)
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 #6584FC, closest first.
No curated palette has a color within ΔE 0.04 of #6584FC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.027
- Soft Blue #6488EA ΔE 0.030
- Lavender Blue #8B88F8 ΔE 0.052
- Cornflower Blue #6495ED ΔE 0.053
- Periwinkle #8E82FE ΔE 0.054
- Dodger Blue #1E90FF ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.055
- Dark Sky Blue #448EE4 ΔE 0.056
Use #6584FC 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.