#5159A3
Closest named color: Dusky Blue (#475F94). oklch(49.4% 0.118 276.5), rgb(81, 89, 163).
Aa
White text reads best on this color (6.34:1).
About this color
#5159A3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.118 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.035 away. White text reads best on it, at 6.34:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.30:1 |
| White text | 6.34:1 |
Values
| HEX | #5159A3 |
| RGB | rgb(81, 89, 163) |
| HSL | hsl(234, 34%, 48%) |
| OKLCH | oklch(49.4% 0.118 276.5) |
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 #5159A3 | 6.34:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #5159A3 | 3.30:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #5159A3 text on white | 6.34:1 | AA | Lc 81.4 | Fine for body text |
| #5159A3 text on black | 3.30:1 | AA large text | Lc -20.4 | 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
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EF
oklch(88.5% 0.032 276)
-
Step 300
300
#B6BEE6
oklch(80.9% 0.057 276.2)
-
Step 400
400
#919CD9
oklch(70.7% 0.09 276)
-
Step 500
500
#7782CF
oklch(63.1% 0.116 276.4)
-
Step 600
600
#616ABC
oklch(55.5% 0.127 276.7)
-
Step 700
700 (this color)
#5159A3
oklch(49.4% 0.118 276.5)
-
Step 800
800
#424883
oklch(42.6% 0.097 277.1)
-
Step 900
900
#373D69
oklch(37.6% 0.075 276.3)
-
Step 950
950
#20243E
oklch(27% 0.049 276)
#5159A3 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) | #3A63A6 | 0.036 |
| Deuteranopia (no green cones) | #335CA1 | 0.036 |
| Tritanopia (no blue cones) | #316976 | 0.104 |
| Achromatopsia (no color) | #5F5F5F | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5159A3
#5159A3
oklch(49.4% 0.118 276.5)
- #726100
#726100
oklch(49.4% 0.102 97.1)
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 #5159A3, closest first.
No curated palette has a color within ΔE 0.04 of #5159A3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.035
- Denim Blue #3B5B92 ΔE 0.041
- Twilight #4E518B ΔE 0.042
- French Blue #436BAD ΔE 0.050
- Dusk #4E5481 ΔE 0.055
- Denim #3B638C ΔE 0.058
- Iris #6258C4 ΔE 0.059
- Mid Blue #276AB3 ΔE 0.059
Use #5159A3 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.