#409BCA
Closest named color: Faded Blue (#658CBB). oklch(65.5% 0.11 234.6), rgb(64, 155, 202).
Aa
Black text reads best on this color (6.75:1).
About this color
#409BCA is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.110 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.048 away. Black text reads best on it, at 6.75:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.75:1 |
| White text | 3.10:1 |
Values
| HEX | #409BCA |
| RGB | rgb(64, 155, 202) |
| HSL | hsl(200, 57%, 52%) |
| OKLCH | oklch(65.5% 0.11 234.6) |
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 #409BCA | 3.10:1 | AA large text | Lc -63.2 | Content text, not long reading |
| Black text on #409BCA | 6.75:1 | AA | Lc 46.3 | Large or bold text, headings |
| #409BCA text on white | 3.10:1 | AA large text | Lc 57.8 | Large or bold text, headings |
| #409BCA text on black | 6.75:1 | AA | Lc -44.0 | Non-text elements, placeholder text |
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
#C7DDEA
oklch(88.5% 0.03 233.6)
-
Step 300
300
#9FC7DF
oklch(80.9% 0.054 234.7)
-
Step 400
400
#68AACF
oklch(70.8% 0.086 234.4)
-
Step 500
500 (this color)
#409BCA
oklch(65.5% 0.11 234.6)
-
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
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#0E4762
oklch(37.7% 0.072 234.7)
-
Step 950
950
#0C2A39
oklch(27% 0.045 233.7)
#409BCA 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) | #849ACC | 0.068 |
| Deuteranopia (no green cones) | #718CC9 | 0.058 |
| Tritanopia (no blue cones) | #00A7AB | 0.071 |
| Achromatopsia (no color) | #929292 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #409BCA
#409BCA
oklch(65.5% 0.11 234.6)
- #C47D4B
#C47D4B
oklch(65.4% 0.11 54.6)
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 #409BCA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.048
- Dark Sky Blue #448EE4 ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.063
- Dusty Blue #5A86AD ΔE 0.064
- Cool Blue #4984B8 ΔE 0.064
- Blue NCS #118AB2 ΔE 0.064
- Greyblue #77A1B5 ΔE 0.064
- Water Blue #0E87CC ΔE 0.066
Use #409BCA 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.