#648ED6
Closest named color: Dark Sky Blue (#448EE4). oklch(64.7% 0.118 260.7), rgb(100, 142, 214).
Aa
Black text reads best on this color (6.38:1).
About this color
#648ED6 is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.118 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.035 away. Black text reads best on it, at 6.38:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.38:1 |
| White text | 3.29:1 |
Values
| HEX | #648ED6 |
| RGB | rgb(100, 142, 214) |
| HSL | hsl(218, 58%, 62%) |
| OKLCH | oklch(64.7% 0.118 260.7) |
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 #648ED6 | 3.29:1 | AA large text | Lc -65.6 | Content text, not long reading |
| Black text on #648ED6 | 6.38:1 | AA | Lc 43.9 | Non-text elements, placeholder text |
| #648ED6 text on white | 3.29:1 | AA large text | Lc 60.1 | Content text, not long reading |
| #648ED6 text on black | 6.38:1 | AA | Lc -41.6 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#ACC2E7
oklch(81% 0.058 260.8)
-
Step 400
400
#7FA1DB
oklch(70.6% 0.094 260.8)
-
Step 500
500 (this color)
#648ED6
oklch(64.7% 0.118 260.7)
-
Step 600
600
#4672BE
oklch(55.7% 0.128 260.6)
-
Step 700
700
#375FA4
oklch(49.2% 0.12 260.6)
-
Step 800
800
#2E4E85
oklch(42.8% 0.099 260.5)
-
Step 900
900
#29416A
oklch(37.7% 0.077 260.5)
-
Step 950
950
#18263E
oklch(26.9% 0.049 260.7)
#648ED6 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) | #7194D9 | 0.024 |
| Deuteranopia (no green cones) | #6489D4 | 0.013 |
| Tritanopia (no blue cones) | #269EA8 | 0.106 |
| Achromatopsia (no color) | #8E8E8E | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648ED6
#648ED6
oklch(64.7% 0.118 260.7)
- #B3862A
#B3862A
oklch(64.8% 0.118 81.1)
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 #648ED6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.035
- Cornflower Blue #6495ED ΔE 0.036
- Soft Blue #6488EA ΔE 0.037
- Faded Blue #658CBB ΔE 0.040
- Chefchaouen Blue #4895EF ΔE 0.043
- Cool Blue #4984B8 ΔE 0.060
- Perrywinkle #8F8CE7 ΔE 0.062
- Dusty Blue #5A86AD ΔE 0.064
Use #648ED6 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.