#6C99EF
Closest named color: Cornflower Blue (#6495ED). oklch(68.8% 0.137 262.4), rgb(108, 153, 239).
Aa
Black text reads best on this color (7.44:1).
About this color
#6C99EF is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.137 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.015 away. Black text reads best on it, at 7.44:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.44:1 |
| White text | 2.82:1 |
Values
| HEX | #6C99EF |
| RGB | rgb(108, 153, 239) |
| HSL | hsl(219, 80%, 68%) |
| OKLCH | oklch(68.8% 0.137 262.4) |
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 #6C99EF | 2.82:1 | Fails | Lc -59.3 | Large or bold text, headings |
| Black text on #6C99EF | 7.44:1 | AAA | Lc 50.0 | Large or bold text, headings |
| #6C99EF text on white | 2.82:1 | Fails | Lc 54.0 | Large or bold text, headings |
| #6C99EF text on black | 7.44:1 | AAA | Lc -47.8 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAF9
oklch(88.5% 0.047 262.5)
-
Step 300
300
#A3C1F9
oklch(80.9% 0.086 262.7)
-
Step 400
400 (this color)
#6C99EF
oklch(68.8% 0.137 262.4)
-
Step 500
500
#4D84F2
oklch(63.1% 0.175 262.5)
-
Step 600
600
#316BE0
oklch(55.7% 0.189 262.3)
-
Step 700
700
#2458C3
oklch(49.1% 0.177 262.4)
-
Step 800
800
#1F499D
oklch(42.8% 0.145 262.2)
-
Step 900
900
#1E3E7D
oklch(37.7% 0.114 262.2)
-
Step 950
950
#122549
oklch(27% 0.071 261.9)
#6C99EF 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) | #76A0F3 | 0.023 |
| Deuteranopia (no green cones) | #6694ED | 0.016 |
| Tritanopia (no blue cones) | #19ACB9 | 0.122 |
| Achromatopsia (no color) | #9A9A9A | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C99EF
#6C99EF
oklch(68.8% 0.137 262.4)
- #C49117
#C49117
oklch(68.8% 0.136 82.3)
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 #6C99EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.015
- Chefchaouen Blue #4895EF ΔE 0.037
- Soft Blue #6488EA ΔE 0.047
- Periwinkle Blue #8F99FB ΔE 0.047
- Perrywinkle #8F8CE7 ΔE 0.051
- Dark Sky Blue #448EE4 ΔE 0.054
- Lavender Blue #8B88F8 ΔE 0.058
- Dodger Blue #1E90FF ΔE 0.070
Use #6C99EF 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.