#6573FF
Closest named color: Cornflower (#6A79F7). oklch(62% 0.206 274.4), rgb(101, 115, 255).
Aa
Black text reads best on this color (5.44:1).
About this color
#6573FF is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.206 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.021 away. Black text reads best on it, at 5.44:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.206) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #6573FF |
| RGB | rgb(101, 115, 255) |
| HSL | hsl(235, 100%, 70%) |
| OKLCH | oklch(62% 0.206 274.4) |
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 #6573FF | 3.85:1 | AA large text | Lc -71.1 | Content text, not long reading |
| Black text on #6573FF | 5.44:1 | AA | Lc 38.5 | Non-text elements, placeholder text |
| #6573FF text on white | 3.85:1 | AA large text | Lc 65.6 | Content text, not long reading |
| #6573FF text on black | 5.44:1 | AA | Lc -36.0 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E4E9FE
oklch(93.7% 0.029 275.2)
-
Step 200
200
#CDD7FF
oklch(88.4% 0.056 274.2)
-
Step 300
300
#ADBCFF
oklch(80.8% 0.096 274.3)
-
Step 400
400
#8597FF
oklch(70.8% 0.153 274.4)
-
Step 500
500 (this color)
#6573FF
oklch(62% 0.206 274.4)
-
Step 600
600
#535AF2
oklch(55.6% 0.223 274.4)
-
Step 700
700
#4448D3
oklch(49% 0.208 274.3)
-
Step 800
800
#383DAB
oklch(42.8% 0.172 274.4)
-
Step 900
900
#2F3687
oklch(37.8% 0.134 274.3)
-
Step 950
950
#1B204F
oklch(26.9% 0.086 274.6)
#6573FF 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) | #0089FF | 0.074 |
| Deuteranopia (no green cones) | #007BFC | 0.066 |
| Tritanopia (no blue cones) | #0094AE | 0.175 |
| Achromatopsia (no color) | #828282 | 0.206 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6573FF
#6573FF
oklch(62% 0.206 274.4)
- #9F8400
#9F8400
oklch(62% 0.127 94.5)
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 #6573FF, closest first.
No curated palette has a color within ΔE 0.04 of #6573FF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.021
- Medium Slate Blue #7B68EE ΔE 0.043
- Clear Blue #247AFD ΔE 0.057
- Soft Blue #6488EA ΔE 0.064
- Neon Blue #4361EE ΔE 0.068
- Royal Blue #4169E1 ΔE 0.068
- Periwinkle #8E82FE ΔE 0.071
- Lavender Blue #8B88F8 ΔE 0.078
Use #6573FF 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.