#647FF2
Closest named color: Cornflower (#6A79F7). oklch(63.3% 0.174 270.8), rgb(100, 127, 242).
Aa
Black text reads best on this color (5.85:1).
About this color
#647FF2 is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.174 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.018 away. Black text reads best on it, at 5.85:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.85:1 |
| White text | 3.58:1 |
Values
| HEX | #647FF2 |
| RGB | rgb(100, 127, 242) |
| HSL | hsl(229, 85%, 67%) |
| OKLCH | oklch(63.3% 0.174 270.8) |
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 #647FF2 | 3.58:1 | AA large text | Lc -68.6 | Content text, not long reading |
| Black text on #647FF2 | 5.85:1 | AA | Lc 40.9 | Non-text elements, placeholder text |
| #647FF2 text on white | 3.58:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #647FF2 text on black | 5.85:1 | AA | Lc -38.5 | 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
#E3E9FB
oklch(93.5% 0.025 271.1)
-
Step 200
200
#CDD8F9
oklch(88.4% 0.047 270.8)
-
Step 300
300
#ACBEF8
oklch(80.8% 0.085 271.1)
-
Step 400
400
#819AF5
oklch(70.6% 0.136 270.9)
-
Step 500
500 (this color)
#647FF2
oklch(63.3% 0.174 270.8)
-
Step 600
600
#4D64E0
oklch(55.5% 0.19 271)
-
Step 700
700
#3E52C3
oklch(49.1% 0.177 270.8)
-
Step 800
800
#33449D
oklch(42.6% 0.146 270.8)
-
Step 900
900
#2C3B7D
oklch(37.8% 0.113 270.5)
-
Step 950
950
#1A2349
oklch(27.1% 0.071 270.9)
#647FF2 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) | #468EF6 | 0.043 |
| Deuteranopia (no green cones) | #2E81F0 | 0.048 |
| Tritanopia (no blue cones) | #0099AD | 0.152 |
| Achromatopsia (no color) | #878787 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647FF2
#647FF2
oklch(63.3% 0.174 270.8)
- #A88600
#A88600
oklch(63.4% 0.13 90.7)
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 #647FF2, closest first.
No curated palette has a color within ΔE 0.04 of #647FF2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.018
- Soft Blue #6488EA ΔE 0.028
- Dark Sky Blue #448EE4 ΔE 0.054
- Medium Slate Blue #7B68EE ΔE 0.058
- Cornflower Blue #6495ED ΔE 0.059
- Lavender Blue #8B88F8 ΔE 0.059
- Clear Blue #247AFD ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.060
Use #647FF2 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.