#5A5BCF
Closest named color: Iris (#6258C4). oklch(53.4% 0.175 278.3), rgb(90, 91, 207).
Aa
White text reads best on this color (5.47:1).
About this color
#5A5BCF is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.175 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.021 away. White text reads best on it, at 5.47:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.83:1 |
| White text | 5.47:1 |
Values
| HEX | #5A5BCF |
| RGB | rgb(90, 91, 207) |
| HSL | hsl(239, 55%, 58%) |
| OKLCH | oklch(53.4% 0.175 278.3) |
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 #5A5BCF | 5.47:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #5A5BCF | 3.83:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #5A5BCF text on white | 5.47:1 | AA | Lc 77.0 | Fine for body text |
| #5A5BCF text on black | 3.83:1 | AA large text | Lc -24.7 | 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 600.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F7
oklch(88.5% 0.044 278.4)
-
Step 300
300
#B4BCF4
oklch(80.9% 0.08 278.1)
-
Step 400
400
#8F98EE
oklch(70.8% 0.126 278.1)
-
Step 500
500
#757BE8
oklch(63% 0.161 278.3)
-
Step 600
600 (this color)
#5A5BCF
oklch(53.4% 0.175 278.3)
-
Step 700
700
#4F50BA
oklch(49.1% 0.163 278.1)
-
Step 800
800
#414296
oklch(42.6% 0.135 278.5)
-
Step 900
900
#363978
oklch(37.7% 0.105 278)
-
Step 950
950
#202246
oklch(27.1% 0.066 278.6)
#5A5BCF 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) | #006ED3 | 0.073 |
| Deuteranopia (no green cones) | #0064CD | 0.069 |
| Tritanopia (no blue cones) | #17768C | 0.152 |
| Achromatopsia (no color) | #696969 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A5BCF
#5A5BCF
oklch(53.4% 0.175 278.3)
- #7E6D00
#7E6D00
oklch(53.5% 0.111 98.4)
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 #5A5BCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.021
- Dark Periwinkle #665FD1 ΔE 0.021
- Slate Blue #6A5ACD ΔE 0.024
- Light Indigo #6D5ACF ΔE 0.029
- Warm Blue #4B57DB ΔE 0.030
- Royal Blue #4169E1 ΔE 0.047
- Neon Blue #4361EE ΔE 0.055
- Bluey Purple #6241C7 ΔE 0.057
Use #5A5BCF 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.