#409FEC
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.1% 0.144 246.7), rgb(64, 159, 236).
Aa
Black text reads best on this color (7.38:1).
About this color
#409FEC is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.144 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.028 away. Black text reads best on it, at 7.38:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.38:1 |
| White text | 2.84:1 |
Values
| HEX | #409FEC |
| RGB | rgb(64, 159, 236) |
| HSL | hsl(207, 82%, 59%) |
| OKLCH | oklch(68.1% 0.144 246.7) |
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 #409FEC | 2.84:1 | Fails | Lc -59.4 | Large or bold text, headings |
| Black text on #409FEC | 7.38:1 | AAA | Lc 49.9 | Large or bold text, headings |
| #409FEC text on white | 2.84:1 | Fails | Lc 54.1 | Large or bold text, headings |
| #409FEC text on black | 7.38:1 | AAA | Lc -47.7 | 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
#EFF6FD
oklch(97% 0.012 248)
-
Step 100
100
#DCECFB
oklch(93.6% 0.027 246.3)
-
Step 200
200
#BFDDF9
oklch(88.5% 0.05 246.6)
-
Step 300
300
#90C7F8
oklch(81% 0.09 246.1)
-
Step 400
400 (this color)
#409FEC
oklch(68.1% 0.144 246.7)
-
Step 500
500
#008FE6
oklch(63.1% 0.164 246.6)
-
Step 600
600
#0078C2
oklch(55.6% 0.145 246.5)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#005288
oklch(42.7% 0.112 246.9)
-
Step 900
900
#004472
oklch(37.6% 0.099 246.8)
-
Step 950
950
#002846
oklch(26.9% 0.07 246.6)
#409FEC 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) | #7CA2EF | 0.057 |
| Deuteranopia (no green cones) | #6392EB | 0.041 |
| Tritanopia (no blue cones) | #00B2BB | 0.105 |
| Achromatopsia (no color) | #999999 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #409FEC
#409FEC
oklch(68.1% 0.144 246.7)
- #D38419
#D38419
oklch(68.1% 0.144 66.6)
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 #409FEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.028
- Cornflower Blue #6495ED ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.045
- Dodger Blue #1E90FF ΔE 0.058
- Soft Blue #6488EA ΔE 0.064
- Faded Blue #658CBB ΔE 0.080
- Water Blue #0E87CC ΔE 0.083
- Deep Sky Blue #00BFFF ΔE 0.084
Use #409FEC 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.