#648EDF
Closest named color: Cornflower Blue (#6495ED). oklch(65.2% 0.13 262.5), rgb(100, 142, 223).
Aa
Black text reads best on this color (6.47:1).
About this color
#648EDF is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.130 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.025 away. Black text reads best on it, at 6.47:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.47:1 |
| White text | 3.24:1 |
Values
| HEX | #648EDF |
| RGB | rgb(100, 142, 223) |
| HSL | hsl(220, 66%, 63%) |
| OKLCH | oklch(65.2% 0.13 262.5) |
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 #648EDF | 3.24:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #648EDF | 6.47:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #648EDF text on white | 3.24:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #648EDF text on black | 6.47:1 | AA | Lc -42.2 | 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
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CDDAF1
oklch(88.6% 0.035 262)
-
Step 300
300
#ABC1EB
oklch(80.9% 0.064 263.3)
-
Step 400
400
#7EA0E1
oklch(70.6% 0.103 262.8)
-
Step 500
500 (this color)
#648EDF
oklch(65.2% 0.13 262.5)
-
Step 600
600
#4470C5
oklch(55.6% 0.141 262.2)
-
Step 700
700
#365DAA
oklch(49.1% 0.131 262.4)
-
Step 800
800
#2D4C8A
oklch(42.6% 0.109 262.7)
-
Step 900
900
#28406E
oklch(37.6% 0.085 262.3)
-
Step 950
950
#182641
oklch(27.1% 0.054 262.5)
#648EDF 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) | #6D95E2 | 0.023 |
| Deuteranopia (no green cones) | #5E8ADD | 0.013 |
| Tritanopia (no blue cones) | #15A0AC | 0.117 |
| Achromatopsia (no color) | #8F8F8F | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648EDF
#648EDF
oklch(65.2% 0.13 262.5)
- #B78712
#B78712
oklch(65.3% 0.13 82.4)
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 #648EDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.025
- Soft Blue #6488EA ΔE 0.025
- Dark Sky Blue #448EE4 ΔE 0.030
- Chefchaouen Blue #4895EF ΔE 0.034
- Faded Blue #658CBB ΔE 0.054
- Perrywinkle #8F8CE7 ΔE 0.056
- Dodger Blue #1E90FF ΔE 0.065
- Lavender Blue #8B88F8 ΔE 0.065
Use #648EDF 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.