#408FC5
Closest named color: Cool Blue (#4984B8). oklch(62.5% 0.112 241.6), rgb(64, 143, 197).
Aa
Black text reads best on this color (5.95:1).
About this color
#408FC5 is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.112 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.032 away. Black text reads best on it, at 5.95:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.95:1 |
| White text | 3.52:1 |
Values
| HEX | #408FC5 |
| RGB | rgb(64, 143, 197) |
| HSL | hsl(204, 53%, 51%) |
| OKLCH | oklch(62.5% 0.112 241.6) |
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 #408FC5 | 3.52:1 | AA large text | Lc -68.1 | Content text, not long reading |
| Black text on #408FC5 | 5.95:1 | AA | Lc 41.5 | Non-text elements, placeholder text |
| #408FC5 text on white | 3.52:1 | AA large text | Lc 62.6 | Content text, not long reading |
| #408FC5 text on black | 5.95:1 | AA | Lc -39.1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCEC
oklch(88.4% 0.031 242)
-
Step 300
300
#A2C6E1
oklch(80.9% 0.054 240.8)
-
Step 400
400
#6DA8D3
oklch(70.8% 0.088 241.2)
-
Step 500
500 (this color)
#408FC5
oklch(62.5% 0.112 241.6)
-
Step 600
600
#1A7AB4
oklch(55.5% 0.122 241.9)
-
Step 700
700
#06679B
oklch(49.2% 0.114 241.5)
-
Step 800
800
#0E547D
oklch(42.7% 0.093 241.3)
-
Step 900
900
#164665
oklch(37.8% 0.073 241.2)
-
Step 950
950
#0F293B
oklch(27% 0.046 241.6)
#408FC5 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) | #7690C7 | 0.056 |
| Deuteranopia (no green cones) | #6483C4 | 0.044 |
| Tritanopia (no blue cones) | #009CA2 | 0.079 |
| Achromatopsia (no color) | #888888 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #408FC5
#408FC5
oklch(62.5% 0.112 241.6)
- #B87739
#B87739
oklch(62.6% 0.112 61.8)
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 #408FC5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.032
- Faded Blue #658CBB ΔE 0.036
- Water Blue #0E87CC ΔE 0.038
- Steel Blue #4682B4 ΔE 0.039
- Dusty Blue #5A86AD ΔE 0.042
- Off Blue #5684AE ΔE 0.042
- Blue NCS #118AB2 ΔE 0.042
- Dark Sky Blue #448EE4 ΔE 0.049
Use #408FC5 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.