#6D99FF
Closest named color: Cornflower Blue (#6495ED). oklch(69.8% 0.158 265), rgb(109, 153, 255).
Aa
Black text reads best on this color (7.65:1).
About this color
#6D99FF is a medium-light, vivid blue. In OKLCH its lightness is 70%, its chroma 0.158 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.030 away. Black text reads best on it, at 7.65:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.65:1 |
| White text | 2.74:1 |
Values
| HEX | #6D99FF |
| RGB | rgb(109, 153, 255) |
| HSL | hsl(222, 100%, 71%) |
| OKLCH | oklch(69.8% 0.158 265) |
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 #6D99FF | 2.74:1 | Fails | Lc -58.1 | Large or bold text, headings |
| Black text on #6D99FF | 7.65:1 | AAA | Lc 51.2 | Large or bold text, headings |
| #6D99FF text on white | 2.74:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #6D99FF text on black | 7.65:1 | AAA | Lc -49.0 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E1EAFE
oklch(93.6% 0.029 266.4)
-
Step 200
200
#C8D9FE
oklch(88.5% 0.054 265.8)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400 (this color)
#6D99FF
oklch(69.8% 0.158 265)
-
Step 500
500
#4D7FFF
oklch(63% 0.198 265.1)
-
Step 600
600
#3264F1
oklch(55.7% 0.219 265)
-
Step 700
700
#2551D2
oklch(49.1% 0.204 265)
-
Step 800
800
#2044A9
oklch(42.8% 0.168 265)
-
Step 900
900
#1E3B86
oklch(37.8% 0.131 264.8)
-
Step 950
950
#12234E
oklch(26.9% 0.082 265.1)
#6D99FF 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) | #6DA3FF | 0.026 |
| Deuteranopia (no green cones) | #5A96FD | 0.022 |
| Tritanopia (no blue cones) | #00B0C0 | 0.140 |
| Achromatopsia (no color) | #9C9C9C | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D99FF
#6D99FF
oklch(69.8% 0.158 265)
- #C69500
#C69500
oklch(69.7% 0.143 85)
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 #6D99FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.030
- Periwinkle Blue #8F99FB ΔE 0.041
- Chefchaouen Blue #4895EF ΔE 0.045
- Lavender Blue #8B88F8 ΔE 0.052
- Soft Blue #6488EA ΔE 0.052
- Perrywinkle #8F8CE7 ΔE 0.056
- Dark Sky Blue #448EE4 ΔE 0.065
- Periwinkle #8E82FE ΔE 0.066
Use #6D99FF 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.