#408FB5
Closest named color: Blue NCS (#118AB2). oklch(61.7% 0.096 232.2), rgb(64, 143, 181).
Aa
Black text reads best on this color (5.81:1).
About this color
#408FB5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.096 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.030 away. Black text reads best on it, at 5.81:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.81:1 |
| White text | 3.61:1 |
Values
| HEX | #408FB5 |
| RGB | rgb(64, 143, 181) |
| HSL | hsl(199, 48%, 48%) |
| OKLCH | oklch(61.7% 0.096 232.2) |
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 #408FB5 | 3.61:1 | AA large text | Lc -69.0 | Content text, not long reading |
| Black text on #408FB5 | 5.81:1 | AA | Lc 40.6 | Non-text elements, placeholder text |
| #408FB5 text on white | 3.61:1 | AA large text | Lc 63.5 | Content text, not long reading |
| #408FB5 text on black | 5.81:1 | AA | Lc -38.2 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A3C7DA
oklch(81% 0.047 231.1)
-
Step 400
400
#6FA9C8
oklch(70.6% 0.076 232.7)
-
Step 500
500 (this color)
#408FB5
oklch(61.7% 0.096 232.2)
-
Step 600
600
#1E7DA6
oklch(55.6% 0.104 232.5)
-
Step 700
700
#0C698E
oklch(49% 0.097 232.5)
-
Step 800
800
#115673
oklch(42.7% 0.08 231.9)
-
Step 900
900
#18475D
oklch(37.7% 0.063 232.2)
-
Step 950
950
#102A36
oklch(27.1% 0.039 230.5)
#408FB5 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) | #7C8DB7 | 0.064 |
| Deuteranopia (no green cones) | #6C81B4 | 0.055 |
| Tritanopia (no blue cones) | #00999C | 0.061 |
| Achromatopsia (no color) | #878787 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #408FB5
#408FB5
oklch(61.7% 0.096 232.2)
- #B3744D
#B3744D
oklch(61.7% 0.096 51.9)
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 #408FB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.030
- Dusty Blue #5A86AD ΔE 0.031
- Off Blue #5684AE ΔE 0.033
- Cool Blue #4984B8 ΔE 0.033
- Steel Blue #4682B4 ΔE 0.037
- Faded Blue #658CBB ΔE 0.038
- Teal Blue #01889F ΔE 0.050
- Water Blue #0E87CC ΔE 0.053
Use #408FB5 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.