#519FE6
Closest named color: Cornflower Blue (#6495ED). oklch(68.4% 0.131 248.3), rgb(81, 159, 230).
Aa
Black text reads best on this color (7.45:1).
About this color
#519FE6 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.131 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.034 away. Black text reads best on it, at 7.45:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.45:1 |
| White text | 2.81:1 |
Values
| HEX | #519FE6 |
| RGB | rgb(81, 159, 230) |
| HSL | hsl(209, 75%, 61%) |
| OKLCH | oklch(68.4% 0.131 248.3) |
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 #519FE6 | 2.81:1 | Fails | Lc -59.2 | Large or bold text, headings |
| Black text on #519FE6 | 7.45:1 | AAA | Lc 50.1 | Large or bold text, headings |
| #519FE6 text on white | 2.81:1 | Fails | Lc 53.9 | Large or bold text, headings |
| #519FE6 text on black | 7.45:1 | AAA | Lc -47.9 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECF9
oklch(93.6% 0.023 246)
-
Step 200
200
#C2DCF6
oklch(88.4% 0.045 248.3)
-
Step 300
300
#97C6F3
oklch(80.9% 0.081 247.8)
-
Step 400
400 (this color)
#519FE6
oklch(68.4% 0.131 248.3)
-
Step 500
500
#108EE8
oklch(63.1% 0.166 248.2)
-
Step 600
600
#0077C6
oklch(55.6% 0.15 248.2)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#00518B
oklch(42.6% 0.117 248.8)
-
Step 900
900
#004475
oklch(37.8% 0.103 248.3)
-
Step 950
950
#032846
oklch(27% 0.069 248.1)
#519FE6 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) | #80A2E9 | 0.050 |
| Deuteranopia (no green cones) | #6B93E5 | 0.037 |
| Tritanopia (no blue cones) | #00B0B8 | 0.101 |
| Achromatopsia (no color) | #9A9A9A | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #519FE6
#519FE6
oklch(68.4% 0.131 248.3)
- #CE8830
#CE8830
oklch(68.4% 0.131 67.8)
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 #519FE6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.034
- Chefchaouen Blue #4895EF ΔE 0.035
- Dark Sky Blue #448EE4 ΔE 0.049
- Soft Blue #6488EA ΔE 0.063
- Dodger Blue #1E90FF ΔE 0.069
- Faded Blue #658CBB ΔE 0.072
- Periwinkle Blue #8F99FB ΔE 0.077
- Perrywinkle #8F8CE7 ΔE 0.080
Use #519FE6 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.