#515689
Closest named color: Dusk (#4E5481). oklch(47.2% 0.082 278.5), rgb(81, 86, 137).
Aa
White text reads best on this color (6.90:1).
About this color
#515689 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.082 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.014 away. White text reads best on it, at 6.90:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 3.04:1 |
| White text | 6.90:1 |
Values
| HEX | #515689 |
| RGB | rgb(81, 86, 137) |
| HSL | hsl(235, 26%, 43%) |
| OKLCH | oklch(47.2% 0.082 278.5) |
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 #515689 | 6.90:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #515689 | 3.04:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #515689 text on white | 6.90:1 | AA | Lc 83.8 | Fine for body text |
| #515689 text on black | 3.04:1 | AA large text | Lc -18.2 | 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 700.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E8
oklch(88.5% 0.022 277.5)
-
Step 300
300
#BABFDB
oklch(81% 0.04 277.5)
-
Step 400
400
#979DC9
oklch(70.7% 0.065 278.6)
-
Step 500
500
#7E85BB
oklch(63.2% 0.082 278.1)
-
Step 600
600
#686EA7
oklch(55.7% 0.089 278.5)
-
Step 700
700 (this color)
#515689
oklch(47.2% 0.082 278.5)
-
Step 800
800
#474B74
oklch(42.8% 0.068 278.8)
-
Step 900
900
#3B3F5E
oklch(37.8% 0.053 277.9)
-
Step 950
950
#232537
oklch(27.1% 0.034 279)
#515689 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) | #455C8B | 0.022 |
| Deuteranopia (no green cones) | #415888 | 0.022 |
| Tritanopia (no blue cones) | #406069 | 0.072 |
| Achromatopsia (no color) | #5A5A5A | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515689
#515689
oklch(47.2% 0.082 278.5)
- #675C1D
#675C1D
oklch(47.2% 0.083 99.2)
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 #515689, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.014
- Twilight #4E518B ΔE 0.017
- Dusky Blue #475F94 ΔE 0.029
- Denim Blue #3B5B92 ΔE 0.031
- Dusty Grape #545775 ΔE 0.034
- YInMn Blue #415A77 ΔE 0.042
- Denim #3B638C ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.043
Use #515689 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.