#648EFC
Closest named color: Soft Blue (#6488EA). oklch(66.9% 0.169 266.2), rgb(100, 142, 252).
Aa
Black text reads best on this color (6.81:1).
About this color
#648EFC is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.169 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.029 away. Black text reads best on it, at 6.81:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.81:1 |
| White text | 3.08:1 |
Values
| HEX | #648EFC |
| RGB | rgb(100, 142, 252) |
| HSL | hsl(223, 96%, 69%) |
| OKLCH | oklch(66.9% 0.169 266.2) |
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 #648EFC | 3.08:1 | AA large text | Lc -62.8 | Content text, not long reading |
| Black text on #648EFC | 6.81:1 | AA | Lc 46.6 | Large or bold text, headings |
| #648EFC text on white | 3.08:1 | AA large text | Lc 57.5 | Large or bold text, headings |
| #648EFC text on black | 6.81:1 | AA | Lc -44.3 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CBD9F9
oklch(88.5% 0.047 266.7)
-
Step 300
300
#A8C0F7
oklch(80.9% 0.083 266.3)
-
Step 400
400
#7A9DF3
oklch(70.7% 0.132 266.3)
-
Step 500
500 (this color)
#648EFC
oklch(66.9% 0.169 266.2)
-
Step 600
600
#4069DD
oklch(55.6% 0.183 265.9)
-
Step 700
700
#3356C0
oklch(49.1% 0.171 266.3)
-
Step 800
800
#2A479B
oklch(42.6% 0.142 266.1)
-
Step 900
900
#263D7C
oklch(37.8% 0.111 266.1)
-
Step 950
950
#162448
oklch(26.9% 0.07 265.9)
#648EFC 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) | #5B9AFF | 0.030 |
| Deuteranopia (no green cones) | #448CFA | 0.031 |
| Tritanopia (no blue cones) | #00A7B9 | 0.146 |
| Achromatopsia (no color) | #939393 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648EFC
#648EFC
oklch(66.9% 0.169 266.2)
- #BA8D00
#BA8D00
oklch(66.8% 0.137 85.8)
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 #648EFC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.029
- Cornflower Blue #6495ED ΔE 0.031
- Chefchaouen Blue #4895EF ΔE 0.038
- Lavender Blue #8B88F8 ΔE 0.048
- Dodger Blue #1E90FF ΔE 0.049
- Dark Sky Blue #448EE4 ΔE 0.049
- Cornflower #6A79F7 ΔE 0.051
- Periwinkle #8E82FE ΔE 0.058
Use #648EFC 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.