#52599D
Closest named color: Dusky Blue (#475F94). oklch(49.1% 0.108 277.2), rgb(82, 89, 157).
Aa
White text reads best on this color (6.41:1).
About this color
#52599D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.108 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.028 away. White text reads best on it, at 6.41:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.27:1 |
| White text | 6.41:1 |
Values
| HEX | #52599D |
| RGB | rgb(82, 89, 157) |
| HSL | hsl(234, 31%, 47%) |
| OKLCH | oklch(49.1% 0.108 277.2) |
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 #52599D | 6.41:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #52599D | 3.27:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #52599D text on white | 6.41:1 | AA | Lc 81.7 | Fine for body text |
| #52599D text on black | 3.27:1 | AA large text | Lc -20.1 | 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
#D4D8ED
oklch(88.6% 0.029 277.2)
-
Step 300
300
#B8BEE3
oklch(80.9% 0.053 277.9)
-
Step 400
400
#939CD5
oklch(70.7% 0.084 277.1)
-
Step 500
500
#7983CA
oklch(63.2% 0.107 276.8)
-
Step 600
600
#636BB6
oklch(55.5% 0.116 277.3)
-
Step 700
700 (this color)
#52599D
oklch(49.1% 0.108 277.2)
-
Step 800
800
#43497F
oklch(42.6% 0.089 277.1)
-
Step 900
900
#383D66
oklch(37.5% 0.07 277.2)
-
Step 950
950
#21243C
oklch(27% 0.045 277.5)
#52599D 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) | #3E62A0 | 0.032 |
| Deuteranopia (no green cones) | #385C9B | 0.033 |
| Tritanopia (no blue cones) | #376773 | 0.095 |
| Achromatopsia (no color) | #5F5F5F | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #52599D
#52599D
oklch(49.1% 0.108 277.2)
- #716000
#716000
oklch(49.1% 0.101 97)
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 #52599D, closest first.
No curated palette has a color within ΔE 0.04 of #52599D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.028
- Twilight #4E518B ΔE 0.035
- Denim Blue #3B5B92 ΔE 0.036
- Dusk #4E5481 ΔE 0.046
- Denim #3B638C ΔE 0.052
- French Blue #436BAD ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.058
- Mid Blue #276AB3 ΔE 0.063
Use #52599D 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.