#5259BC
Closest named color: Iris (#6258C4). oklch(51.1% 0.153 276.5), rgb(82, 89, 188).
Aa
White text reads best on this color (5.97:1).
About this color
#5259BC is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.153 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.027 away. White text reads best on it, at 5.97:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #5259BC |
| RGB | rgb(82, 89, 188) |
| HSL | hsl(236, 44%, 53%) |
| OKLCH | oklch(51.1% 0.153 276.5) |
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 #5259BC | 5.97:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #5259BC | 3.51:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #5259BC text on white | 5.97:1 | AA | Lc 79.6 | Fine for body text |
| #5259BC text on black | 3.51:1 | AA large text | Lc -22.2 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D1D7F5
oklch(88.4% 0.042 276.6)
-
Step 300
300
#B3BDF1
oklch(80.9% 0.074 276.1)
-
Step 400
400
#8D99EA
oklch(70.6% 0.119 276.5)
-
Step 500
500
#737EE3
oklch(63.1% 0.151 276.5)
-
Step 600
600
#5D65D1
oklch(55.6% 0.164 276.5)
-
Step 700
700 (this color)
#5259BC
oklch(51.1% 0.153 276.5)
-
Step 800
800
#3F4493
oklch(42.7% 0.128 276.8)
-
Step 900
900
#353A75
oklch(37.6% 0.1 276.8)
-
Step 950
950
#1F2344
oklch(27.1% 0.061 276.3)
#5259BC 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) | #2168BF | 0.056 |
| Deuteranopia (no green cones) | #085FBA | 0.060 |
| Tritanopia (no blue cones) | #177082 | 0.135 |
| Achromatopsia (no color) | #636363 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5259BC
#5259BC
oklch(51.1% 0.153 276.5)
- #786600
#786600
oklch(51.2% 0.106 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 #5259BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.027
- Slate Blue #6A5ACD ΔE 0.045
- Dark Periwinkle #665FD1 ΔE 0.047
- Warm Blue #4B57DB ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.051
- French Blue #436BAD ΔE 0.058
- Bluey Purple #6241C7 ΔE 0.059
- Mid Blue #276AB3 ΔE 0.061
Use #5259BC 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.