#6598FF
Closest named color: Cornflower Blue (#6495ED). oklch(69.2% 0.162 263), rgb(101, 152, 255).
Aa
Black text reads best on this color (7.48:1).
About this color
#6598FF is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.162 and its hue 263°. 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 7.48:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.48:1 |
| White text | 2.80:1 |
Values
| HEX | #6598FF |
| RGB | rgb(101, 152, 255) |
| HSL | hsl(220, 100%, 70%) |
| OKLCH | oklch(69.2% 0.162 263) |
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 #6598FF | 2.80:1 | Fails | Lc -59.0 | Large or bold text, headings |
| Black text on #6598FF | 7.48:1 | AAA | Lc 50.3 | Large or bold text, headings |
| #6598FF text on white | 2.80:1 | Fails | Lc 53.7 | Large or bold text, headings |
| #6598FF text on black | 7.48:1 | AAA | Lc -48.1 | 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
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C6DAFF
oklch(88.5% 0.056 262.8)
-
Step 300
300
#A0C1FF
oklch(80.9% 0.095 262.7)
-
Step 400
400 (this color)
#6598FF
oklch(69.2% 0.162 263)
-
Step 500
500
#4681FF
oklch(63.1% 0.198 263.1)
-
Step 600
600
#2464F4
oklch(55.5% 0.226 263)
-
Step 700
700
#1852D4
oklch(49.1% 0.208 263)
-
Step 800
800
#1644AB
oklch(42.6% 0.172 263)
-
Step 900
900
#183B88
oklch(37.7% 0.135 263.1)
-
Step 950
950
#0F234F
oklch(26.9% 0.085 263.4)
#6598FF 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) | #6AA2FF | 0.028 |
| Deuteranopia (no green cones) | #5594FD | 0.020 |
| Tritanopia (no blue cones) | #00AFBF | 0.138 |
| Achromatopsia (no color) | #9A9A9A | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6598FF
#6598FF
oklch(69.2% 0.162 263)
- #C69200
#C69200
oklch(69.1% 0.142 83.1)
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 #6598FF, 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 0.038
- Soft Blue #6488EA ΔE 0.048
- Periwinkle Blue #8F99FB ΔE 0.050
- Lavender Blue #8B88F8 ΔE 0.056
- Dodger Blue #1E90FF ΔE 0.057
- Dark Sky Blue #448EE4 ΔE 0.058
- Perrywinkle #8F8CE7 ΔE 0.061
Use #6598FF 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.