#6DA4FF
Closest named color: Periwinkle Blue (#8F99FB). oklch(72% 0.146 260), rgb(109, 164, 255).
Aa
Black text reads best on this color (8.40:1).
About this color
#6DA4FF is a medium-light, vivid blue. In OKLCH its lightness is 72%, its chroma 0.146 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.045 away. Black text reads best on it, at 8.40:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.40:1 |
| White text | 2.49:1 |
Values
| HEX | #6DA4FF |
| RGB | rgb(109, 164, 255) |
| HSL | hsl(217, 100%, 71%) |
| OKLCH | oklch(72% 0.146 260) |
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 #6DA4FF | 2.49:1 | Fails | Lc -53.9 | Large or bold text, headings |
| Black text on #6DA4FF | 8.40:1 | AAA | Lc 55.1 | Large or bold text, headings |
| #6DA4FF text on white | 2.49:1 | Fails | Lc 48.9 | Large or bold text, headings |
| #6DA4FF text on black | 8.40:1 | AAA | Lc -53.1 | 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
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DAFB
oklch(88.4% 0.051 260.4)
-
Step 300
300
#9EC2FC
oklch(80.9% 0.091 259.8)
-
Step 400
400 (this color)
#6DA4FF
oklch(72% 0.146 260)
-
Step 500
500
#3F85F8
oklch(63.2% 0.186 259.9)
-
Step 600
600
#1D6BE7
oklch(55.7% 0.202 260)
-
Step 700
700
#0E58C9
oklch(49.1% 0.189 260)
-
Step 800
800
#1049A2
oklch(42.7% 0.155 259.8)
-
Step 900
900
#163E81
oklch(37.7% 0.122 260.2)
-
Step 950
950
#0E254B
oklch(27% 0.076 259.9)
#6DA4FF 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) | #7EABFF | 0.028 |
| Deuteranopia (no green cones) | #6B9EFD | 0.016 |
| Tritanopia (no blue cones) | #00B8C5 | 0.128 |
| Achromatopsia (no color) | #A4A4A4 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6DA4FF
#6DA4FF
oklch(72% 0.146 260)
- #D49913
#D49913
oklch(72.1% 0.146 80.1)
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 #6DA4FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.045
- Cornflower Blue #6495ED ΔE 0.046
- Chefchaouen Blue #4895EF ΔE 0.060
- Carolina Blue #8AB8FE ΔE 0.066
- Perrywinkle #8F8CE7 ΔE 0.071
- Lavender Blue #8B88F8 ΔE 0.074
- Soft Blue #6488EA ΔE 0.077
- Dark Sky Blue #448EE4 ΔE 0.081
Use #6DA4FF 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.