#6B99FC
Closest named color: Cornflower Blue (#6495ED). oklch(69.5% 0.154 264), rgb(107, 153, 252).
Aa
Black text reads best on this color (7.58:1).
About this color
#6B99FC is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.154 and its hue 264°. 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 7.58:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.58:1 |
| White text | 2.76:1 |
Values
| HEX | #6B99FC |
| RGB | rgb(107, 153, 252) |
| HSL | hsl(221, 96%, 70%) |
| OKLCH | oklch(69.5% 0.154 264) |
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 #6B99FC | 2.76:1 | Fails | Lc -58.4 | Large or bold text, headings |
| Black text on #6B99FC | 7.58:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #6B99FC text on white | 2.76:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #6B99FC text on black | 7.58:1 | AAA | Lc -48.6 | 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
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFE
oklch(88.6% 0.054 263.2)
-
Step 300
300
#A1C0FF
oklch(80.8% 0.096 264.1)
-
Step 400
400 (this color)
#6B99FC
oklch(69.5% 0.154 264)
-
Step 500
500
#4A80FF
oklch(63.1% 0.198 264.2)
-
Step 600
600
#2E65EE
oklch(55.5% 0.215 264)
-
Step 700
700
#2253CF
oklch(49.1% 0.199 264)
-
Step 800
800
#1D45A7
oklch(42.7% 0.164 263.9)
-
Step 900
900
#1D3B85
oklch(37.7% 0.13 264.4)
-
Step 950
950
#11244E
oklch(27.1% 0.081 263.6)
#6B99FC 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) | #6FA3FF | 0.027 |
| Deuteranopia (no green cones) | #5C95FA | 0.020 |
| Tritanopia (no blue cones) | #00AFBE | 0.137 |
| Achromatopsia (no color) | #9B9B9B | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B99FC
#6B99FC
oklch(69.5% 0.154 264)
- #C69400
#C69400
oklch(69.5% 0.143 84.4)
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 #6B99FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.025
- Chefchaouen Blue #4895EF ΔE 0.041
- Periwinkle Blue #8F99FB ΔE 0.043
- Soft Blue #6488EA ΔE 0.050
- Lavender Blue #8B88F8 ΔE 0.053
- Perrywinkle #8F8CE7 ΔE 0.056
- Dark Sky Blue #448EE4 ΔE 0.061
- Dodger Blue #1E90FF ΔE 0.065
Use #6B99FC 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.