#405A75
Closest named color: YInMn Blue (#415A77). oklch(45.8% 0.054 250), rgb(64, 90, 117).
Aa
White text reads best on this color (7.14:1).
About this color
#405A75 is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.054 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.004 away. White text reads best on it, at 7.14:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.93:1 |
| White text | 7.14:1 |
Values
| HEX | #405A75 |
| RGB | rgb(64, 90, 117) |
| HSL | hsl(211, 29%, 35%) |
| OKLCH | oklch(45.8% 0.054 250) |
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 #405A75 | 7.14:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #405A75 | 2.93:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #405A75 text on white | 7.14:1 | AAA | Lc 84.8 | Fine for body text |
| #405A75 text on black | 2.93:1 | Fails | Lc -17.2 | Dividers and decoration only |
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 800.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B2C3D5
oklch(81% 0.032 249.7)
-
Step 400
400
#89A4C0
oklch(70.8% 0.051 249.5)
-
Step 500
500
#6B8DB0
oklch(63.1% 0.065 249.6)
-
Step 600
600
#53779B
oklch(55.7% 0.07 249.2)
-
Step 700
700
#436485
oklch(49.2% 0.066 249.3)
-
Step 800
800 (this color)
#405A75
oklch(45.8% 0.054 250)
-
Step 900
900
#304357
oklch(37.6% 0.042 250.3)
-
Step 950
950
#1C2833
oklch(27.1% 0.026 246.6)
#405A75 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) | #4F5B76 | 0.021 |
| Deuteranopia (no green cones) | #495574 | 0.018 |
| Tritanopia (no blue cones) | #2C6063 | 0.046 |
| Achromatopsia (no color) | #585858 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405A75
#405A75
oklch(45.8% 0.054 250)
- #6B5235
#6B5235
oklch(45.7% 0.054 69.9)
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 #405A75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.004
- Dusty Grape #545775 ΔE 0.028
- Dusk #4E5481 ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.036
- Denim #3B638C ΔE 0.040
- Slate #516572 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.047
- Dusky Blue #475F94 ΔE 0.052
Use #405A75 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.