#6579FF
Closest named color: Cornflower (#6A79F7). oklch(63.1% 0.198 273), rgb(101, 121, 255).
Aa
Black text reads best on this color (5.73:1).
About this color
#6579FF is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.198 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.013 away. Black text reads best on it, at 5.73:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.198) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.73:1 |
| White text | 3.66:1 |
Values
| HEX | #6579FF |
| RGB | rgb(101, 121, 255) |
| HSL | hsl(232, 100%, 70%) |
| OKLCH | oklch(63.1% 0.198 273) |
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 #6579FF | 3.66:1 | AA large text | Lc -69.4 | Content text, not long reading |
| Black text on #6579FF | 5.73:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #6579FF text on white | 3.66:1 | AA large text | Lc 63.9 | Content text, not long reading |
| #6579FF text on black | 5.73:1 | AA | Lc -37.8 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CDD8FE
oklch(88.6% 0.054 272.5)
-
Step 300
300
#ACBDFF
oklch(80.9% 0.095 273)
-
Step 400
400
#8298FF
oklch(70.8% 0.152 272.8)
-
Step 500
500 (this color)
#6579FF
oklch(63.1% 0.198 273)
-
Step 600
600
#4F5DEE
oklch(55.5% 0.216 272.9)
-
Step 700
700
#414BD0
oklch(49.1% 0.202 273)
-
Step 800
800
#353FA8
oklch(42.7% 0.167 272.9)
-
Step 900
900
#2D3785
oklch(37.7% 0.13 273)
-
Step 950
950
#1A214E
oklch(27% 0.083 273)
#6579FF 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) | #228DFF | 0.065 |
| Deuteranopia (no green cones) | #007FFC | 0.064 |
| Tritanopia (no blue cones) | #0098B0 | 0.170 |
| Achromatopsia (no color) | #868686 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6579FF
#6579FF
oklch(63.1% 0.198 273)
- #A48600
#A48600
oklch(63% 0.129 93)
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 #6579FF, closest first.
No curated palette has a color within ΔE 0.04 of #6579FF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.013
- Medium Slate Blue #7B68EE ΔE 0.050
- Soft Blue #6488EA ΔE 0.052
- Clear Blue #247AFD ΔE 0.056
- Periwinkle #8E82FE ΔE 0.062
- Lavender Blue #8B88F8 ΔE 0.068
- Dodger Blue #1E90FF ΔE 0.070
- Royal Blue #4169E1 ΔE 0.075
Use #6579FF 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.