#405DBA
Closest named color: Mid Blue (#276AB3). oklch(50.7% 0.15 267.7), rgb(64, 93, 186).
Aa
White text reads best on this color (6.01:1).
About this color
#405DBA is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.150 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.041 away. White text reads best on it, at 6.01:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.49:1 |
| White text | 6.01:1 |
Values
| HEX | #405DBA |
| RGB | rgb(64, 93, 186) |
| HSL | hsl(226, 49%, 49%) |
| OKLCH | oklch(50.7% 0.15 267.7) |
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 #405DBA | 6.01:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #405DBA | 3.49:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #405DBA text on white | 6.01:1 | AA | Lc 79.7 | Fine for body text |
| #405DBA text on black | 3.49:1 | AA large text | Lc -22.1 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CDD9F5
oklch(88.5% 0.041 267.1)
-
Step 300
300
#ACC0F1
oklch(81% 0.073 267.4)
-
Step 400
400
#819DE9
oklch(70.6% 0.116 268)
-
Step 500
500
#6283E3
oklch(63% 0.149 267.7)
-
Step 600
600
#4A6BD1
oklch(55.7% 0.162 267.5)
-
Step 700
700 (this color)
#405DBA
oklch(50.7% 0.15 267.7)
-
Step 800
800
#314992
oklch(42.7% 0.124 267.3)
-
Step 900
900
#2B3E75
oklch(37.8% 0.097 267.3)
-
Step 950
950
#192444
oklch(26.9% 0.062 267.8)
#405DBA 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) | #2969BD | 0.034 |
| Deuteranopia (no green cones) | #045EB8 | 0.039 |
| Tritanopia (no blue cones) | #007383 | 0.125 |
| Achromatopsia (no color) | #636363 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405DBA
#405DBA
oklch(50.7% 0.15 267.7)
- #7E6100
#7E6100
oklch(50.8% 0.104 88.1)
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 #405DBA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.041
- French Blue #436BAD ΔE 0.047
- Iris #6258C4 ΔE 0.049
- Warm Blue #4B57DB ΔE 0.056
- Dusky Blue #475F94 ΔE 0.062
- Dark Periwinkle #665FD1 ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.064
- Slate Blue #6A5ACD ΔE 0.065
Use #405DBA 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.