#515B98
Closest named color: Dusky Blue (#475F94). oklch(49.1% 0.098 275.1), rgb(81, 91, 152).
Aa
White text reads best on this color (6.36:1).
About this color
#515B98 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.098 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.019 away. White text reads best on it, at 6.36:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.29:1 |
| White text | 6.36:1 |
Values
| HEX | #515B98 |
| RGB | rgb(81, 91, 152) |
| HSL | hsl(232, 30%, 46%) |
| OKLCH | oklch(49.1% 0.098 275.1) |
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 #515B98 | 6.36:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #515B98 | 3.29:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #515B98 text on white | 6.36:1 | AA | Lc 81.5 | Fine for body text |
| #515B98 text on black | 3.29:1 | AA large text | Lc -20.3 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EB
oklch(88.5% 0.026 276.4)
-
Step 300
300
#B7BFE0
oklch(80.9% 0.047 274.6)
-
Step 400
400
#929DD0
oklch(70.6% 0.076 274.9)
-
Step 500
500
#7884C4
oklch(63% 0.097 275.1)
-
Step 600
600
#626DB1
oklch(55.6% 0.106 275.4)
-
Step 700
700 (this color)
#515B98
oklch(49.1% 0.098 275.1)
-
Step 800
800
#424B7B
oklch(42.8% 0.08 274.5)
-
Step 900
900
#383E63
oklch(37.6% 0.064 275.9)
-
Step 950
950
#21253A
oklch(27.1% 0.04 275.2)
#515B98 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) | #44629A | 0.024 |
| Deuteranopia (no green cones) | #3E5D97 | 0.024 |
| Tritanopia (no blue cones) | #386872 | 0.088 |
| Achromatopsia (no color) | #5F5F5F | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515B98
#515B98
oklch(49.1% 0.098 275.1)
- #725F07
#725F07
oklch(49% 0.098 94.9)
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 #515B98, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.019
- Denim Blue #3B5B92 ΔE 0.030
- Twilight #4E518B ΔE 0.033
- Dusk #4E5481 ΔE 0.039
- Denim #3B638C ΔE 0.042
- French Blue #436BAD ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.051
- Dusty Grape #545775 ΔE 0.056
Use #515B98 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.