#409FCF
Closest named color: Faded Blue (#658CBB). oklch(66.7% 0.113 234.2), rgb(64, 159, 207).
Aa
Black text reads best on this color (7.07:1).
About this color
#409FCF is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.113 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.057 away. Black text reads best on it, at 7.07:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 7.07:1 |
| White text | 2.96:1 |
Values
| HEX | #409FCF |
| RGB | rgb(64, 159, 207) |
| HSL | hsl(200, 60%, 53%) |
| OKLCH | oklch(66.7% 0.113 234.2) |
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 #409FCF | 2.96:1 | Fails | Lc -61.3 | Content text, not long reading |
| Black text on #409FCF | 7.07:1 | AAA | Lc 48.1 | Large or bold text, headings |
| #409FCF text on white | 2.96:1 | Fails | Lc 55.9 | Large or bold text, headings |
| #409FCF text on black | 7.07:1 | AAA | Lc -45.8 | 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 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
#9EC7DF
oklch(80.8% 0.055 234)
-
Step 400
400
#66AAD0
oklch(70.8% 0.089 234.4)
-
Step 500
500 (this color)
#409FCF
oklch(66.7% 0.113 234.2)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#0B4763
oklch(37.6% 0.074 235.1)
-
Step 950
950
#0A2A3A
oklch(27% 0.047 234.3)
#409FCF 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) | #889ED1 | 0.071 |
| Deuteranopia (no green cones) | #7490CE | 0.059 |
| Tritanopia (no blue cones) | #00ACAF | 0.073 |
| Achromatopsia (no color) | #969696 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #409FCF
#409FCF
oklch(66.7% 0.113 234.2)
- #CA804D
#CA804D
oklch(66.7% 0.113 54)
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 #409FCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.057
- Turquoise Blue #06B1C4 ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.062
- Greyblue #77A1B5 ΔE 0.062
- Dark Sky Blue #448EE4 ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.066
- Cadet Blue #5F9EA0 ΔE 0.072
- Dusty Blue #5A86AD ΔE 0.075
Use #409FCF 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.