#525AB0
Closest named color: Iris (#6258C4). oklch(50.5% 0.135 276.4), rgb(82, 90, 176).
Aa
White text reads best on this color (6.09:1).
About this color
#525AB0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.135 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.040 away. White text reads best on it, at 6.09:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.44:1 |
| White text | 6.09:1 |
Values
| HEX | #525AB0 |
| RGB | rgb(82, 90, 176) |
| HSL | hsl(235, 37%, 51%) |
| OKLCH | oklch(50.5% 0.135 276.4) |
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 #525AB0 | 6.09:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #525AB0 | 3.44:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #525AB0 text on white | 6.09:1 | AA | Lc 80.2 | Fine for body text |
| #525AB0 text on black | 3.44:1 | AA large text | Lc -21.6 | 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
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D8F2
oklch(88.6% 0.036 275.3)
-
Step 300
300
#B5BEEB
oklch(81% 0.064 276)
-
Step 400
400
#8F9BE1
oklch(70.7% 0.103 276)
-
Step 500
500
#7580D9
oklch(63.1% 0.134 276.5)
-
Step 600
600
#5F68C6
oklch(55.6% 0.144 276.5)
-
Step 700
700 (this color)
#525AB0
oklch(50.5% 0.135 276.4)
-
Step 800
800
#40478B
oklch(42.8% 0.111 276.2)
-
Step 900
900
#363C6F
oklch(37.7% 0.087 276.3)
-
Step 950
950
#202341
oklch(27% 0.056 277.7)
#525AB0 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) | #3266B3 | 0.044 |
| Deuteranopia (no green cones) | #275EAE | 0.047 |
| Tritanopia (no blue cones) | #276D7C | 0.119 |
| Achromatopsia (no color) | #626262 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #525AB0
#525AB0
oklch(50.5% 0.135 276.4)
- #766400
#766400
oklch(50.5% 0.104 96.7)
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 #525AB0, closest first.
No curated palette has a color within ΔE 0.04 of #525AB0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.040
- French Blue #436BAD ΔE 0.048
- Dusky Blue #475F94 ΔE 0.052
- Mid Blue #276AB3 ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.058
- Denim Blue #3B5B92 ΔE 0.058
- Dark Periwinkle #665FD1 ΔE 0.061
- Twilight #4E518B ΔE 0.062
Use #525AB0 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.