#669BFA
Closest named color: Cornflower Blue (#6495ED). oklch(69.5% 0.151 261.3), rgb(102, 155, 250).
Aa
Black text reads best on this color (7.63:1).
About this color
#669BFA is a medium-light, vivid blue. In OKLCH its lightness is 70%, its chroma 0.151 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.023 away. Black text reads best on it, at 7.63:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.63:1 |
| White text | 2.75:1 |
Values
| HEX | #669BFA |
| RGB | rgb(102, 155, 250) |
| HSL | hsl(219, 94%, 69%) |
| OKLCH | oklch(69.5% 0.151 261.3) |
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 #669BFA | 2.75:1 | Fails | Lc -58.2 | Large or bold text, headings |
| Black text on #669BFA | 7.63:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #669BFA text on white | 2.75:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #669BFA text on black | 7.63:1 | AAA | Lc -48.9 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFD
oklch(93.7% 0.027 260.3)
-
Step 200
200
#C6DAFD
oklch(88.5% 0.053 261.7)
-
Step 300
300
#9EC1FE
oklch(80.8% 0.095 261.3)
-
Step 400
400 (this color)
#669BFA
oklch(69.5% 0.151 261.3)
-
Step 500
500
#4183FC
oklch(63.1% 0.193 261.3)
-
Step 600
600
#2068EB
oklch(55.5% 0.21 261.3)
-
Step 700
700
#1356CD
oklch(49.1% 0.196 261.2)
-
Step 800
800
#1347A5
oklch(42.6% 0.161 261.2)
-
Step 900
900
#173D83
oklch(37.7% 0.126 261.3)
-
Step 950
950
#0E244D
oklch(26.9% 0.081 261.5)
#669BFA 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) | #72A3FE | 0.026 |
| Deuteranopia (no green cones) | #5E96F8 | 0.016 |
| Tritanopia (no blue cones) | #00B0BE | 0.131 |
| Achromatopsia (no color) | #9C9C9C | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #669BFA
#669BFA
oklch(69.5% 0.151 261.3)
- #CA9200
#CA9200
oklch(69.6% 0.144 81.2)
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 #669BFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.023
- Chefchaouen Blue #4895EF ΔE 0.037
- Periwinkle Blue #8F99FB ΔE 0.048
- Soft Blue #6488EA ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.058
- Perrywinkle #8F8CE7 ΔE 0.060
- Lavender Blue #8B88F8 ΔE 0.060
- Dodger Blue #1E90FF ΔE 0.063
Use #669BFA 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.