#6685FB
Closest named color: Soft Blue (#6488EA). oklch(65.2% 0.178 269.8), rgb(102, 133, 251).
Aa
Black text reads best on this color (6.31:1).
About this color
#6685FB is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.178 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.028 away. Black text reads best on it, at 6.31:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.31:1 |
| White text | 3.32:1 |
Values
| HEX | #6685FB |
| RGB | rgb(102, 133, 251) |
| HSL | hsl(228, 95%, 69%) |
| OKLCH | oklch(65.2% 0.178 269.8) |
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 #6685FB | 3.32:1 | AA large text | Lc -65.8 | Content text, not long reading |
| Black text on #6685FB | 6.31:1 | AA | Lc 43.7 | Non-text elements, placeholder text |
| #6685FB text on white | 3.32:1 | AA large text | Lc 60.4 | Content text, not long reading |
| #6685FB text on black | 6.31:1 | AA | Lc -41.3 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CCD8FA
oklch(88.4% 0.049 270)
-
Step 300
300
#AABEFA
oklch(80.8% 0.088 270.1)
-
Step 400
400
#7F9BF7
oklch(70.8% 0.139 269.8)
-
Step 500
500 (this color)
#6685FB
oklch(65.2% 0.178 269.8)
-
Step 600
600
#4964E3
oklch(55.6% 0.195 269.8)
-
Step 700
700
#3B52C5
oklch(49.1% 0.181 269.8)
-
Step 800
800
#31449F
oklch(42.7% 0.149 270)
-
Step 900
900
#2A3B7E
oklch(37.8% 0.115 269.5)
-
Step 950
950
#19234A
oklch(27.1% 0.073 270.1)
#6685FB 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) | #4B94FF | 0.042 |
| Deuteranopia (no green cones) | #3187F9 | 0.046 |
| Tritanopia (no blue cones) | #00A0B4 | 0.155 |
| Achromatopsia (no color) | #8D8D8D | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6685FB
#6685FB
oklch(65.2% 0.178 269.8)
- #AF8B00
#AF8B00
oklch(65.2% 0.133 90.3)
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 #6685FB, closest first.
No curated palette has a color within ΔE 0.04 of #6685FB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.028
- Cornflower #6A79F7 ΔE 0.029
- Cornflower Blue #6495ED ΔE 0.049
- Lavender Blue #8B88F8 ΔE 0.049
- Periwinkle #8E82FE ΔE 0.052
- Chefchaouen Blue #4895EF ΔE 0.053
- Dodger Blue #1E90FF ΔE 0.055
- Dark Sky Blue #448EE4 ΔE 0.055
Use #6685FB 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.