#52559A
Closest named color: Twilight (#4E518B). oklch(48% 0.11 279.5), rgb(82, 85, 154).
Aa
White text reads best on this color (6.72:1).
About this color
#52559A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.110 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.026 away. White text reads best on it, at 6.72:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.12:1 |
| White text | 6.72:1 |
Values
| HEX | #52559A |
| RGB | rgb(82, 85, 154) |
| HSL | hsl(238, 31%, 46%) |
| OKLCH | oklch(48% 0.11 279.5) |
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 #52559A | 6.72:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #52559A | 3.12:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #52559A text on white | 6.72:1 | AA | Lc 83.0 | Fine for body text |
| #52559A text on black | 3.12:1 | AA large text | Lc -18.9 | 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
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D5D8ED
oklch(88.6% 0.029 279.3)
-
Step 300
300
#B9BEE3
oklch(81% 0.052 279.1)
-
Step 400
400
#959BD5
oklch(70.6% 0.085 279.4)
-
Step 500
500
#7C82CA
oklch(63.2% 0.108 279.2)
-
Step 600
600
#666AB7
oklch(55.6% 0.118 279.6)
-
Step 700
700 (this color)
#52559A
oklch(48% 0.11 279.5)
-
Step 800
800
#454880
oklch(42.7% 0.092 279.4)
-
Step 900
900
#3A3D66
oklch(37.7% 0.07 279.3)
-
Step 950
950
#22243C
oklch(27.1% 0.045 279.3)
#52559A 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) | #3A5E9D | 0.036 |
| Deuteranopia (no green cones) | #355998 | 0.038 |
| Tritanopia (no blue cones) | #396370 | 0.095 |
| Achromatopsia (no color) | #5C5C5C | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #52559A
#52559A
oklch(48% 0.11 279.5)
- #6C5E00
#6C5E00
oklch(48.1% 0.1 99.1)
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 #52559A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.026
- Dusky Blue #475F94 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.037
- Dusk #4E5481 ΔE 0.041
- Denim #3B638C ΔE 0.056
- Light Navy Blue #2E5A88 ΔE 0.057
- Blueberry #464196 ΔE 0.058
- Dusk Blue #26538D ΔE 0.059
Use #52559A 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.