#5A5BBF
Closest named color: Iris (#6258C4). oklch(52.3% 0.153 279.3), rgb(90, 91, 191).
Aa
White text reads best on this color (5.70:1).
About this color
#5A5BBF is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.153 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.016 away. White text reads best on it, at 5.70:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.68:1 |
| White text | 5.70:1 |
Values
| HEX | #5A5BBF |
| RGB | rgb(90, 91, 191) |
| HSL | hsl(239, 44%, 55%) |
| OKLCH | oklch(52.3% 0.153 279.3) |
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 #5A5BBF | 5.70:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #5A5BBF | 3.68:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #5A5BBF text on white | 5.70:1 | AA | Lc 78.3 | Fine for body text |
| #5A5BBF text on black | 3.68:1 | AA large text | Lc -23.5 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F8
oklch(93.6% 0.02 276.9)
-
Step 200
200
#D3D7F5
oklch(88.5% 0.041 279.5)
-
Step 300
300
#B6BCF0
oklch(80.8% 0.074 279.5)
-
Step 400
400
#9198E9
oklch(70.7% 0.118 279.1)
-
Step 500
500
#787CE2
oklch(63% 0.151 279.4)
-
Step 600
600
#6263D0
oklch(55.6% 0.164 279.2)
-
Step 700
700 (this color)
#5A5BBF
oklch(52.3% 0.153 279.3)
-
Step 800
800
#434392
oklch(42.7% 0.127 279.6)
-
Step 900
900
#383A74
oklch(37.8% 0.097 279.2)
-
Step 950
950
#202244
oklch(26.9% 0.063 278.8)
#5A5BBF 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) | #266BC3 | 0.062 |
| Deuteranopia (no green cones) | #1763BD | 0.065 |
| Tritanopia (no blue cones) | #2E7184 | 0.132 |
| Achromatopsia (no color) | #666666 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A5BBF
#5A5BBF
oklch(52.3% 0.153 279.3)
- #796A00
#796A00
oklch(52.2% 0.108 99.5)
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 #5A5BBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.016
- Slate Blue #6A5ACD ΔE 0.033
- Dark Periwinkle #665FD1 ΔE 0.035
- Light Indigo #6D5ACF ΔE 0.038
- Warm Blue #4B57DB ΔE 0.050
- French Blue #436BAD ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.060
- Royal Blue #4169E1 ΔE 0.064
Use #5A5BBF 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.