#5A75E3
Closest named color: Cornflower (#6A79F7). oklch(59.8% 0.169 270.2), rgb(90, 117, 227).
Aa
Black text reads best on this color (5.08:1).
About this color
#5A75E3 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.169 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.038 away. Black text reads best on it, at 5.08:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.08:1 |
| White text | 4.12:1 |
Values
| HEX | #5A75E3 |
| RGB | rgb(90, 117, 227) |
| HSL | hsl(228, 71%, 62%) |
| OKLCH | oklch(59.8% 0.169 270.2) |
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 #5A75E3 | 4.12:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #5A75E3 | 5.08:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #5A75E3 text on white | 4.12:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #5A75E3 text on black | 5.08:1 | AA | Lc -33.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CDD8F8
oklch(88.4% 0.046 270.4)
-
Step 300
300
#ACBFF7
oklch(81% 0.082 270)
-
Step 400
400
#819BF3
oklch(70.7% 0.132 270.3)
-
Step 500
500 (this color)
#5A75E3
oklch(59.8% 0.169 270.2)
-
Step 600
600
#4C66DD
oklch(55.6% 0.183 270.1)
-
Step 700
700
#3E54C0
oklch(49.2% 0.171 270.2)
-
Step 800
800
#33459B
oklch(42.7% 0.141 270.4)
-
Step 900
900
#2C3B7B
oklch(37.7% 0.11 270.4)
-
Step 950
950
#1A2348
oklch(27% 0.07 270.8)
#5A75E3 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) | #3C83E7 | 0.041 |
| Deuteranopia (no green cones) | #2177E1 | 0.047 |
| Tritanopia (no blue cones) | #008EA1 | 0.146 |
| Achromatopsia (no color) | #7D7D7D | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A75E3
#5A75E3
oklch(59.8% 0.169 270.2)
- #9C7B00
#9C7B00
oklch(59.8% 0.122 89.8)
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 #5A75E3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.038
- Royal Blue #4169E1 ΔE 0.044
- Soft Blue #6488EA ΔE 0.052
- Medium Slate Blue #7B68EE ΔE 0.055
- Clear Blue #247AFD ΔE 0.056
- Dark Periwinkle #665FD1 ΔE 0.058
- Neon Blue #4361EE ΔE 0.062
- Dark Sky Blue #448EE4 ΔE 0.065
Use #5A75E3 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.