#408EE9
Closest named color: Dark Sky Blue (#448EE4). oklch(64.2% 0.157 254.2), rgb(64, 142, 233).
Aa
Black text reads best on this color (6.26:1).
About this color
#408EE9 is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.157 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.008 away. Black text reads best on it, at 6.26:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.157) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.26:1 |
| White text | 3.35:1 |
Values
| HEX | #408EE9 |
| RGB | rgb(64, 142, 233) |
| HSL | hsl(212, 79%, 58%) |
| OKLCH | oklch(64.2% 0.157 254.2) |
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 #408EE9 | 3.35:1 | AA large text | Lc -66.1 | Content text, not long reading |
| Black text on #408EE9 | 6.26:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #408EE9 text on white | 3.35:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #408EE9 text on black | 6.26:1 | AA | Lc -41.1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C6DBF5
oklch(88.4% 0.042 253.8)
-
Step 300
300
#9FC4F2
oklch(81% 0.077 254.1)
-
Step 400
400
#69A3EB
oklch(70.6% 0.123 254.5)
-
Step 500
500 (this color)
#408EE9
oklch(64.2% 0.157 254.2)
-
Step 600
600
#1272D3
oklch(55.5% 0.17 254.3)
-
Step 700
700
#005FB7
oklch(49.1% 0.158 254.4)
-
Step 800
800
#084E94
oklch(42.6% 0.131 254.3)
-
Step 900
900
#134276
oklch(37.8% 0.102 254)
-
Step 950
950
#0D2745
oklch(27% 0.064 254)
#408EE9 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) | #6395ED | 0.040 |
| Deuteranopia (no green cones) | #4985E7 | 0.023 |
| Tritanopia (no blue cones) | #00A3B0 | 0.120 |
| Achromatopsia (no color) | #8C8C8C | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #408EE9
#408EE9
oklch(64.2% 0.157 254.2)
- #BD7E00
#BD7E00
oklch(64.2% 0.136 74.1)
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 #408EE9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.008
- Chefchaouen Blue #4895EF ΔE 0.022
- Soft Blue #6488EA ΔE 0.035
- Dodger Blue #1E90FF ΔE 0.035
- Cornflower Blue #6495ED ΔE 0.040
- Water Blue #0E87CC ΔE 0.055
- Clear Blue #247AFD ΔE 0.068
- Cornflower #6A79F7 ΔE 0.069
Use #408EE9 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.