#505AAE
Closest named color: Iris (#6258C4). oklch(50.2% 0.132 275.5), rgb(80, 90, 174).
Aa
White text reads best on this color (6.14:1).
About this color
#505AAE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.132 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.044 away. White text reads best on it, at 6.14:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #505AAE |
| RGB | rgb(80, 90, 174) |
| HSL | hsl(234, 37%, 50%) |
| OKLCH | oklch(50.2% 0.132 275.5) |
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 #505AAE | 6.14:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #505AAE | 3.41:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #505AAE text on white | 6.14:1 | AA | Lc 80.5 | Fine for body text |
| #505AAE text on black | 3.41:1 | AA large text | Lc -21.4 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D8F1
oklch(88.5% 0.035 274.9)
-
Step 300
300
#B4BEEB
oklch(80.9% 0.065 275.1)
-
Step 400
400
#8E9BE0
oklch(70.6% 0.102 275.3)
-
Step 500
500
#7481D8
oklch(63.1% 0.131 275.6)
-
Step 600
600
#5D69C5
oklch(55.6% 0.142 275.2)
-
Step 700
700 (this color)
#505AAE
oklch(50.2% 0.132 275.5)
-
Step 800
800
#3F478A
oklch(42.6% 0.11 275.6)
-
Step 900
900
#353C6E
oklch(37.6% 0.086 275.5)
-
Step 950
950
#1F2441
oklch(27.1% 0.054 274.8)
#505AAE 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) | #3366B1 | 0.041 |
| Deuteranopia (no green cones) | #285EAC | 0.043 |
| Tritanopia (no blue cones) | #236C7B | 0.117 |
| Achromatopsia (no color) | #616161 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #505AAE
#505AAE
oklch(50.2% 0.132 275.5)
- #766300
#766300
oklch(50.3% 0.103 95.9)
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 #505AAE, closest first.
No curated palette has a color within ΔE 0.04 of #505AAE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.044
- French Blue #436BAD ΔE 0.047
- Dusky Blue #475F94 ΔE 0.048
- Mid Blue #276AB3 ΔE 0.054
- Denim Blue #3B5B92 ΔE 0.054
- Twilight #4E518B ΔE 0.058
- Slate Blue #6A5ACD ΔE 0.063
- Dark Periwinkle #665FD1 ΔE 0.065
Use #505AAE 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.