#409ECF
Closest named color: Faded Blue (#658CBB). oklch(66.4% 0.114 235), rgb(64, 158, 207).
Aa
Black text reads best on this color (7.00:1).
About this color
#409ECF is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.114 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.055 away. Black text reads best on it, at 7.00:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 7.00:1 |
| White text | 2.99:1 |
Values
| HEX | #409ECF |
| RGB | rgb(64, 158, 207) |
| HSL | hsl(201, 60%, 53%) |
| OKLCH | oklch(66.4% 0.114 235) |
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 #409ECF | 2.99:1 | Fails | Lc -61.7 | Content text, not long reading |
| Black text on #409ECF | 7.00:1 | AAA | Lc 47.7 | Large or bold text, headings |
| #409ECF text on white | 2.99:1 | Fails | Lc 56.3 | Large or bold text, headings |
| #409ECF text on black | 7.00:1 | AAA | Lc -45.5 | 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 500.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEB
oklch(88.5% 0.031 234.5)
-
Step 300
300
#9EC7E0
oklch(80.9% 0.056 235.2)
-
Step 400
400
#66AAD0
oklch(70.8% 0.089 234.4)
-
Step 500
500 (this color)
#409ECF
oklch(66.4% 0.114 235)
-
Step 600
600
#007DAE
oklch(55.7% 0.118 234.9)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#0B4763
oklch(37.6% 0.074 235.1)
-
Step 950
950
#0B2A3A
oklch(27.1% 0.047 234.9)
#409ECF 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) | #869DD1 | 0.069 |
| Deuteranopia (no green cones) | #738FCE | 0.058 |
| Tritanopia (no blue cones) | #00ABAF | 0.073 |
| Achromatopsia (no color) | #959595 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #409ECF
#409ECF
oklch(66.4% 0.114 235)
- #C9804B
#C9804B
oklch(66.6% 0.114 55.3)
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 #409ECF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.060
- Dark Sky Blue #448EE4 ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.062
- Greyblue #77A1B5 ΔE 0.064
- Cornflower Blue #6495ED ΔE 0.065
- Cadet Blue #5F9EA0 ΔE 0.073
- Cool Blue #4984B8 ΔE 0.073
Use #409ECF 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.