#405F77
Closest named color: YInMn Blue (#415A77). oklch(47.1% 0.053 242.5), rgb(64, 95, 119).
Aa
White text reads best on this color (6.72:1).
About this color
#405F77 is a medium-dark, muted blue. In OKLCH its lightness is 47%, its chroma 0.053 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.015 away. White text reads best on it, at 6.72:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.12:1 |
| White text | 6.72:1 |
Values
| HEX | #405F77 |
| RGB | rgb(64, 95, 119) |
| HSL | hsl(206, 30%, 36%) |
| OKLCH | oklch(47.1% 0.053 242.5) |
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 #405F77 | 6.72:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #405F77 | 3.12:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #405F77 text on white | 6.72:1 | AA | Lc 83.1 | Fine for body text |
| #405F77 text on black | 3.12:1 | AA large text | Lc -18.8 | 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 700.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D1DAE2
oklch(88.4% 0.015 244.7)
-
Step 300
300
#B3C3D0
oklch(80.9% 0.025 242.4)
-
Step 400
400
#8BA4B9
oklch(70.7% 0.042 243.7)
-
Step 500
500
#6E8EA7
oklch(63.2% 0.052 242.1)
-
Step 600
600
#557893
oklch(55.7% 0.058 242.2)
-
Step 700
700 (this color)
#405F77
oklch(47.1% 0.053 242.5)
-
Step 800
800
#395265
oklch(42.6% 0.044 241.8)
-
Step 900
900
#314453
oklch(37.7% 0.035 242.6)
-
Step 950
950
#1D2830
oklch(27% 0.021 240.1)
#405F77 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) | #555F78 | 0.028 |
| Deuteranopia (no green cones) | #4E5977 | 0.024 |
| Tritanopia (no blue cones) | #296567 | 0.044 |
| Achromatopsia (no color) | #5C5C5C | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405F77
#405F77
oklch(47.1% 0.053 242.5)
- #71553B
#71553B
oklch(47.2% 0.054 63.8)
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 #405F77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.015
- Slate #516572 ΔE 0.032
- Denim #3B638C ΔE 0.033
- Dusty Grape #545775 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.040
- Dusk #4E5481 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.049
- Dusky Blue #475F94 ΔE 0.050
Use #405F77 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.