#6B99DF
Closest named color: Cornflower Blue (#6495ED). oklch(67.9% 0.116 258.5), rgb(107, 153, 223).
Aa
Black text reads best on this color (7.24:1).
About this color
#6B99DF is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.116 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.027 away. Black text reads best on it, at 7.24:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.24:1 |
| White text | 2.89:1 |
Values
| HEX | #6B99DF |
| RGB | rgb(107, 153, 223) |
| HSL | hsl(216, 64%, 65%) |
| OKLCH | oklch(67.9% 0.116 258.5) |
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 #6B99DF | 2.89:1 | Fails | Lc -60.5 | Content text, not long reading |
| Black text on #6B99DF | 7.24:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #6B99DF text on white | 2.89:1 | Fails | Lc 55.2 | Large or bold text, headings |
| #6B99DF text on black | 7.24:1 | AAA | Lc -46.6 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#C9DAF4
oklch(88.4% 0.04 258.8)
-
Step 300
300
#A4C2F0
oklch(80.8% 0.073 258.8)
-
Step 400
400 (this color)
#6B99DF
oklch(67.9% 0.116 258.5)
-
Step 500
500
#4E89E1
oklch(63.2% 0.147 258.2)
-
Step 600
600
#3170CF
oklch(55.5% 0.161 258.7)
-
Step 700
700
#235DB3
oklch(49% 0.149 258.6)
-
Step 800
800
#1F4D91
oklch(42.7% 0.123 258.4)
-
Step 900
900
#1F4174
oklch(37.8% 0.096 258.4)
-
Step 950
950
#132644
oklch(27% 0.061 259.2)
#6B99DF 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) | #7D9EE2 | 0.026 |
| Deuteranopia (no green cones) | #6F93DE | 0.016 |
| Tritanopia (no blue cones) | #2FA8B2 | 0.102 |
| Achromatopsia (no color) | #989898 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B99DF
#6B99DF
oklch(67.9% 0.116 258.5)
- #BF8F3A
#BF8F3A
oklch(68.1% 0.116 78.7)
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 #6B99DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.027
- Chefchaouen Blue #4895EF ΔE 0.043
- Dark Sky Blue #448EE4 ΔE 0.052
- Soft Blue #6488EA ΔE 0.053
- Perrywinkle #8F8CE7 ΔE 0.057
- Faded Blue #658CBB ΔE 0.059
- Periwinkle Blue #8F99FB ΔE 0.063
- Lavender Blue #8B88F8 ΔE 0.073
Use #6B99DF 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.